The file is an Additemmenu mod, which is already available in [game=4200]Fallout 4[/game] or [game=82]Skyrim[/game]. It allows you to take items from mods without searching for id, or finding them in the world (an extremely useful utility for mod creators).

To install, simply drop it into the Data folder and activate it in the launcher.

Need NVSE, JIP LN NVSE Plugin and The Mod Configuration Menu.

Usage:

1. Go to the menu.

2. Click MCM (Mod Configuration Menu).

3. Select the line with Item Browser.

4. Select the desired line (for example, with weapons).

5. Select the desired mod and number of items.