Performing select all and delete on BitBar iPad or Android device

I am using TestComplete connected to Bitbar and am trying to simulate selecting the Text in a box and deleting it.

I need to do this on the same app but on IOS and Android platforms if the code is different for both?

As far as i can tell it doesn't support .SetText , nor key strokes, .Keys("^A[Del]"), for select all and delete

I can't find any documentation for how to proform this function. Can anyone give any guidance?