BBot - The best bot of the world

I've done a very nice script in drefia using gfb, UE, changes the wand against different creatures, ..
but when the char goes to depot he sometimes get trapped by invisible stalkers and sometimes they are 10 minutes in a row invisible so the char can die..
Could someone help me with the action "shoot gfb on myself"? I cant find any code for this action..

Maybe map.use? Will be work?

do macro
misc stand time >=30
self.say (exori flam)
self.turn.S
wait 2 sec
self.say (exori flam)
self turn E
wait 2 sec
self.say (exori flam)
and every way

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or shoot ue

or you can set a hotkey to use gfb on yourself and use macro command tibia.sendkey(keycode) thats what i do sometimes

Wedel - Map.use does not work
Damiansnk - I have tried it before but misc.stand time does not work because the bot tries to walk infinites times everywhere so he does not think he is stuck...
Bbotone - i was looking for something like that! What should i write for ctrl+f9?