Creative Community - Escape Motions
Veronika EscapeMotions
You can set your custom folder for saving PNGs from Inspirit 1.1 version. After you install this version, it will automatically asks you to select the folder where Inspirit works will be saved. 
To change this later, on Windows go to:
C:\Users\{Username}\AppData\Local\Escape Motions\Inspirit\Data
on MacOS: user/Library/Application Support/Escape Motions/Inspirit/Data

and delete settings.xml file, then reopen Inspirit.