Hello Zachary,
"Send Keys" action sends out as many as possible characters in the internal queue, but while each character is added to the queue one by one, the queue is processed meanwhile. In other words, this way using "Send Keys" action doesn't ensure the entire sequence is sent one time. To do this as a coherent sequence, you may go to Option Dialog, Keyboard, Escape Sequences tab, to override the sequence of some VT function in Option dialog, for example, Alt-F1,
Then, map some keystrokes saying alt+q above to this function in keyboard mapping.
Hope this helps.
Thanks,
Zhi