activate all abilities using one hotkey

[Ad4m]

in almost any serious game, I had more than 12 abilities but I can't activate more than the 12 abilities using the hotkeys 1 to =. and it is very hard and unplayable if I have to click all the abilities on my screen. I suggest to make a hotkey to activate all the abilities at once, so when the player is in need he can press the all abilities button and done! even if he had more than 12 abilities.

[Shinji Trash]

I guess ability activating robots is enough

[PichuYang]

1) There are abilities that require target, or certain condition to be activated.
2) Tech Bot is there for a reason.
3) In BTD 5 there is a hold the button to continuous activate the ability, such as hold 2 to continue use the next available Supply Drop ability. In BTD 6, player have to keep tapping 2 instead. I don't understand why it isn't there.