"Action", For a Player To Do It...

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Ello,

I know its possible to use the following to force an AI to detonate a satchel:

unitname action ["TOUCHOFF", unitname]

However, this does not appear to work on human players.

I know the idea behind it ( not forcing a players decision ), but I need this ability.

Is it possible? I cant get it to work by using the players name in the line.