Is it possible to cancel an operation without terminating the program?

[bizz & buzz]

When using AvsP I sometimes activate a heavy operation due to flipping of the wrong tab, etc.
Obviously, waiting for the operation to complete will be a total waste of time, especially when it was a mistake activating it in the first place.
Is there a way to stop the process in the middle, but without terminating the program and loosing all the data?

Any idea would be much welcome :)

[bizz & buzz]

Maybe something could be done at the AvsP level ? perhaps like the AG_Destroy() (http://libagar.org/mdoc.cgi?man=AG_Core.3#AG_Destroy) function in Agar?
I would do it myself, but unfortunately I'm still not a programmer.

[Zarxrax]

back when avsp was being actively developed, I'm pretty sure I asked the author about this, but apparently it was rather complicated or something, so he couldn't do it.

[bizz & buzz]

Thanks for the info Zarxrax