Happy New Year!

Can anyone please advise, or point me in the direction of help, regarding Wilbur and the generation of different greyscale raster images (16bit pngs, ideally).

I'm writing a tutorial, partly for my own benefit, and I've found having to run "Filter > Mathematical > Span" on every imported png a little furtstrating.
I'd like to be able to save out the respanned png so I can work on it later, or after a Wilbur crash.

I think an export of the respanned png file might be the solution?

Many Thanks,

Runninghead

ps- I can't find an export or save as option that saves an altered map from Wilbur (at least not one that doesn't crash Wilbur when you try to reopen it).