Select Boxes Shortcut Issue

[Chiru_Vlad]

Hello, today I decided to start learning how UiPath forms work so rn I try to simulate an application. I want to select multiple boxes at the same time and I saw this ‘shortcut’ option:

I expected that when I run it and press ‘A’ key to check all these boxes at the same time but nothing happens.

I googled everything and looked into JSON code but without success.