Hi There. I Tried Many Times Until I knew how to make cheats. its Easy.
First make your game normally. after you finish it add a textbox and a text. name the textbox : (cheatBox) and the text : (cheatReader). Add Keyboard plugin if it is not added. Go to your event sheet and add event(if Enter is pressed) then add action (set cheatbox to position its original place) then add action (wait 1 second) then add action (set cheatbox to ""). after you do it add event(if ` is pressed) then add action (set cheatbox to positionto another object: player imagepoint1).next thing is to Add event again (if enter is pressed) add action (set text cheatreader to cheatbox.text) then add action (wait 1 second) then add action (set cheatreader text to "").
After Finishing That
Add A group named cheats. Now its your turn! To make 1 cheat add event (compare text cheatreader: If text Is "you choose"). then add the action you want to cheat do. Hope I helped you