Clicking "prepare" while a print is underway causes pause
If I've got a print underway, and I click Prepare in order to queue up a preview for some possible revisions, the print underway pauses while the main app is on the Save As... dialog. This raises another set of issues, which is, namely, it would be much nicer if we could preview the generated G-code before committing to save it to a file and then optionally print it, but the current workflow doesn't allow for this.
