Created List methods (markdown)

List-methods.md

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+[[List]] and [[Dropdown list]] controls' items are stored in the control's Text property, but they must be manipulated by using the following methods, because they also update important internal variables used to display the control:
+
+##SUB AddItem
+Adds a new item to the end of the list.
+
+    AddItem ControlID, "Item"
+
+##SUB RemoveItem
+Removes the item specified. An error will be raised if the item is beyond the total number of items.
+
+    RemoveItem ControlID, ItemToRemove%
+
+##SUB ResetList
+Erases all list items.
+
+    ResetList ControlID
+
+##SUB ReplaceItem
+Replaces the text of the specified item with the new one provided.
+
+    ReplaceItem ControlID, ItemToReplace%, "New item"
+
+##FUNCTION GetItem
+Returns an item's contents.
+
+    DesiredItem$ = GetItem$(ControlID, ItemToRead%)