Collections and dictionaries could be edited outside.

collection.go

@@ -146,6 +146,8 @@ func (collection *collectionStruct) read(filePath string) (err error) {
 			vocabularyAnswer.Status = ""
 			// add to collection
 			collection.content = append(collection.content, vocabularyAnswer)
+			// set pointer
+			collection.content[len(collection.content)-1].Pointer = &(collection.content[len(collection.content)-1])
 		}
 	}
 	err = nil

dictionary.go

@@ -145,6 +145,8 @@ func (dictionary *dictionaryStruct) read(filePath string) (err error) {
 			vocabularyAnswer.Status = ""
 			// add to dictionary
 			dictionary.content = append(dictionary.content, vocabularyAnswer)
+			// set pointer
+			dictionary.content[len(dictionary.content)-1].Pointer = &(dictionary.content[len(dictionary.content)-1])
 		}
 	}
 	err = nil

query.go

@@ -12,7 +12,7 @@ import (
 
 const (
 	// version
-	version = "v2.1.0"
+	version = "v2.2.0"
 	// title in .xlsx file
 	wd  = "Word"
 	def = "Define"