Set specific values in a field type Link

[Nahuel_Nso]

You can add a filter via Javascript:

cur_frm.fields_dict.FIELD_NAME.get_query = function(doc,cdt,cdn) {
		return {
			filters:[
				['ASOCIATED_DATA_FIELD_NAME', '=', "VALUES"]
			]
		}
	}

You can replace the condition whit other that fit your case, for example “in” (in which case you should provide a list of values in “VALUES”), or “!=” or others.