fix: Add distribute manually option in LCV
diff --git a/erpnext/stock/doctype/landed_cost_item/landed_cost_item.json b/erpnext/stock/doctype/landed_cost_item/landed_cost_item.json
index b24d621..c77b993 100644
--- a/erpnext/stock/doctype/landed_cost_item/landed_cost_item.json
+++ b/erpnext/stock/doctype/landed_cost_item/landed_cost_item.json
@@ -1,4 +1,5 @@
 {
+ "actions": [],
  "creation": "2013-02-22 01:28:02",
  "doctype": "DocType",
  "document_type": "Document",
@@ -29,6 +30,8 @@
    "options": "Item",
    "read_only": 1,
    "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1,
    "width": "100px"
   },
   {
@@ -41,6 +44,8 @@
    "print_width": "300px",
    "read_only": 1,
    "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1,
    "width": "120px"
   },
   {
@@ -50,7 +55,9 @@
    "no_copy": 1,
    "options": "Purchase Invoice\nPurchase Receipt",
    "print_hide": 1,
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "receipt_document",
@@ -59,25 +66,33 @@
    "no_copy": 1,
    "options": "receipt_document_type",
    "print_hide": 1,
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "col_break2",
-   "fieldtype": "Column Break"
+   "fieldtype": "Column Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "qty",
    "fieldtype": "Float",
    "in_list_view": 1,
    "label": "Qty",
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "rate",
    "fieldtype": "Currency",
    "label": "Rate",
    "options": "Company:company:default_currency",
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "amount",
@@ -88,14 +103,19 @@
    "oldfieldtype": "Currency",
    "options": "Company:company:default_currency",
    "read_only": 1,
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "applicable_charges",
    "fieldtype": "Currency",
    "in_list_view": 1,
    "label": "Applicable Charges",
-   "options": "Company:company:default_currency"
+   "options": "Company:company:default_currency",
+   "read_only_depends_on": "eval:parent.distribute_charges_based_on != 'Distribute Manually'",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "purchase_receipt_item",
@@ -104,22 +124,30 @@
    "label": "Purchase Receipt Item",
    "no_copy": 1,
    "print_hide": 1,
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "cost_center",
    "fieldtype": "Link",
    "label": "Cost Center",
-   "options": "Cost Center"
+   "options": "Cost Center",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "accounting_dimensions_section",
    "fieldtype": "Section Break",
-   "label": "Accounting Dimensions"
+   "label": "Accounting Dimensions",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "dimension_col_break",
-   "fieldtype": "Column Break"
+   "fieldtype": "Column Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "default": "0",
@@ -128,12 +156,15 @@
    "fieldtype": "Check",
    "hidden": 1,
    "label": "Is Fixed Asset",
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   }
  ],
  "idx": 1,
  "istable": 1,
- "modified": "2020-09-18 17:26:09.703215",
+ "links": [],
+ "modified": "2021-01-25 23:09:23.322282",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Landed Cost Item",
diff --git a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.js b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.js
index 02ff8fa..1abbc35 100644
--- a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.js
+++ b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.js
@@ -101,25 +101,27 @@
 		var me = this;
 
 		if(this.frm.doc.taxes.length) {
-
 			var total_item_cost = 0.0;
 			var based_on = this.frm.doc.distribute_charges_based_on.toLowerCase();
-			$.each(this.frm.doc.items || [], function(i, d) {
-				total_item_cost += flt(d[based_on])
-			});
 
-			var total_charges = 0.0;
-			$.each(this.frm.doc.items || [], function(i, item) {
-				item.applicable_charges = flt(item[based_on]) * flt(me.frm.doc.total_taxes_and_charges) / flt(total_item_cost)
-				item.applicable_charges = flt(item.applicable_charges, precision("applicable_charges", item))
-				total_charges += item.applicable_charges
-			});
+			if (based_on != 'distribute manually') {
+				$.each(this.frm.doc.items || [], function(i, d) {
+					total_item_cost += flt(d[based_on])
+				});
 
-			if (total_charges != this.frm.doc.total_taxes_and_charges){
-				var diff = this.frm.doc.total_taxes_and_charges - flt(total_charges)
-				this.frm.doc.items.slice(-1)[0].applicable_charges += diff
+				var total_charges = 0.0;
+				$.each(this.frm.doc.items || [], function(i, item) {
+					item.applicable_charges = flt(item[based_on]) * flt(me.frm.doc.total_taxes_and_charges) / flt(total_item_cost)
+					item.applicable_charges = flt(item.applicable_charges, precision("applicable_charges", item))
+					total_charges += item.applicable_charges
+				});
+
+				if (total_charges != this.frm.doc.total_taxes_and_charges){
+					var diff = this.frm.doc.total_taxes_and_charges - flt(total_charges)
+					this.frm.doc.items.slice(-1)[0].applicable_charges += diff
+				}
+				refresh_field("items");
 			}
-			refresh_field("items");
 		}
 	},
 	distribute_charges_based_on: function (frm) {
diff --git a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.json b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.json
index 6a7994b..059f925 100644
--- a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.json
+++ b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.json
@@ -34,7 +34,9 @@
    "options": "MAT-LCV-.YYYY.-",
    "print_hide": 1,
    "reqd": 1,
-   "set_only_once": 1
+   "set_only_once": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "company",
@@ -44,24 +46,32 @@
    "label": "Company",
    "options": "Company",
    "remember_last_selected_value": 1,
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "purchase_receipts",
    "fieldtype": "Table",
    "label": "Purchase Receipts",
    "options": "Landed Cost Purchase Receipt",
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "purchase_receipt_items",
    "fieldtype": "Section Break",
-   "label": "Purchase Receipt Items"
+   "label": "Purchase Receipt Items",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "get_items_from_purchase_receipts",
    "fieldtype": "Button",
-   "label": "Get Items From Purchase Receipts"
+   "label": "Get Items From Purchase Receipts",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "items",
@@ -69,23 +79,31 @@
    "label": "Purchase Receipt Items",
    "no_copy": 1,
    "options": "Landed Cost Item",
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "sec_break1",
    "fieldtype": "Section Break",
-   "label": "Applicable Charges"
+   "label": "Applicable Charges",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "taxes",
    "fieldtype": "Table",
    "label": "Taxes and Charges",
    "options": "Landed Cost Taxes and Charges",
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "section_break_9",
-   "fieldtype": "Section Break"
+   "fieldtype": "Section Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "total_taxes_and_charges",
@@ -93,18 +111,24 @@
    "label": "Total Taxes and Charges (Company Currency)",
    "options": "Company:company:default_currency",
    "read_only": 1,
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "col_break1",
-   "fieldtype": "Column Break"
+   "fieldtype": "Column Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "distribute_charges_based_on",
    "fieldtype": "Select",
    "label": "Distribute Charges Based On",
-   "options": "Qty\nAmount",
-   "reqd": 1
+   "options": "Qty\nAmount\nDistribute Manually",
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "amended_from",
@@ -113,39 +137,51 @@
    "no_copy": 1,
    "options": "Landed Cost Voucher",
    "print_hide": 1,
-   "read_only": 1
+   "read_only": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "sec_break2",
-   "fieldtype": "Section Break"
+   "fieldtype": "Section Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "landed_cost_help",
    "fieldtype": "HTML",
-   "label": "Landed Cost Help"
+   "label": "Landed Cost Help",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "column_break_2",
-   "fieldtype": "Column Break"
+   "fieldtype": "Column Break",
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "default": "Today",
    "fieldname": "posting_date",
    "fieldtype": "Date",
    "label": "Posting Date",
-   "reqd": 1
+   "reqd": 1,
+   "show_days": 1,
+   "show_seconds": 1
   },
   {
    "fieldname": "section_break_5",
    "fieldtype": "Section Break",
-   "hide_border": 1
+   "hide_border": 1,
+   "show_days": 1,
+   "show_seconds": 1
   }
  ],
  "icon": "icon-usd",
  "index_web_pages_for_search": 1,
  "is_submittable": 1,
  "links": [],
- "modified": "2020-12-13 23:18:47.442466",
+ "modified": "2021-01-25 23:07:30.468423",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Landed Cost Voucher",
diff --git a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.py b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.py
index 24bbc40..69a8bf1 100644
--- a/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.py
+++ b/erpnext/stock/doctype/landed_cost_voucher/landed_cost_voucher.py
@@ -80,7 +80,7 @@
 		self.total_taxes_and_charges = sum([flt(d.base_amount) for d in self.get("taxes")])
 
 	def set_applicable_charges_on_item(self):
-		if self.get('taxes'):
+		if self.get('taxes') and self.distribute_charges_based_on != 'Distribute Manually':
 			total_item_cost = 0.0
 			total_charges = 0.0
 			item_count = 0
@@ -102,7 +102,11 @@
 	def validate_applicable_charges_for_item(self):
 		based_on = self.distribute_charges_based_on.lower()
 
-		total = sum([flt(d.get(based_on)) for d in self.get("items")])
+		if based_on != 'distribute manually':
+			total = sum([flt(d.get(based_on)) for d in self.get("items")])
+		else:
+			# consider for proportion while distributing manually
+			total = sum([flt(d.get('applicable_charges')) for d in self.get("items")])
 
 		if not total:
 			frappe.throw(_("Total {0} for all items is zero, may be you should change 'Distribute Charges Based On'").format(based_on))
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
index fd9f5b8..550c849 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -731,7 +731,13 @@
 
 	for lcv in landed_cost_vouchers:
 		landed_cost_voucher_doc = frappe.get_doc("Landed Cost Voucher", lcv.parent)
-		based_on_field = frappe.scrub(landed_cost_voucher_doc.distribute_charges_based_on)
+
+		#Use amount field for total item cost for manually cost distributed LCVs
+		if landed_cost_voucher_doc.distribute_charges_based_on == 'Distribute Manually':
+			based_on_field = 'amount'
+		else:
+			based_on_field = frappe.scrub(landed_cost_voucher_doc.distribute_charges_based_on)
+
 		total_item_cost = 0
 
 		for item in landed_cost_voucher_doc.items:
diff --git a/erpnext/stock/landed_taxes_and_charges_common.js b/erpnext/stock/landed_taxes_and_charges_common.js
index 8ad0880..f3f6196 100644
--- a/erpnext/stock/landed_taxes_and_charges_common.js
+++ b/erpnext/stock/landed_taxes_and_charges_common.js
@@ -30,7 +30,9 @@
 
 			if (row.account_currency == company_currency) {
 				row.exchange_rate = 1;
+				frm.set_df_property('taxes', 'hidden', 1, row.name, 'exchange_rate');
 			} else if (!row.exchange_rate || row.exchange_rate == 1) {
+				frm.set_df_property('taxes', 'hidden', 0, row.name, 'exchange_rate');
 				frappe.call({
 					method: "erpnext.accounts.doctype.journal_entry.journal_entry.get_exchange_rate",
 					args: {
@@ -46,6 +48,8 @@
 					}
 				});
 			}
+
+			frm.refresh_field('taxes');
 		},
 
 		set_base_amount: function(frm, cdt, cdn) {