F5 or similar to remake output

[Piolie]

After setting up a project and running all the steps, it could be necessary to retouch some of the original scans using an external software (e.g., GIMP), possibly several times. Each iteration requires either deleting the corresponding file from the out folder or modifying something else in the project for Scan Tailor to generate the new output. I normally change the size of a spurious white fill zone. This requires creating it and changing between output tabs or between pages for it to work, which makes it a bit cumbersome.
It would be nice to have some hotkey to force Scan Tailor to remake the output for the current page, regardless of anything else.
I'm suggesting F5, which is commonly associated with the update feature in web browsers and other apps.

[4lex4]

Usually scantailor detects whether a file was modified and reprocess that automatically.

[Piolie]

I've seen it detect if the out file was changed. But not if the source was changed.