That is easy and answered already by the first reply by @sauron. You use in the menu File > Export Frame… and then choose a Save as type > JPEG as he has shown. The last reply from sauron is an alternative method.
I noticed the screen with “Open the video in the source viewer. Place the play head where you want to save the frame. Press i for in-point, then without moving the play head press o for outpoint.” has a Red dot and there is a Red dot to the right of Source “In the export tab select source for the export option. Export the frame. This exports 1 frame.” screen.
None of the my save 1 Frame screens had Red dots.
Am using shotcut-win64-190615.
Did a quick search and found “Widening the preview screen” by arthium so am thinking the dots are to direct your attention to specific areas?
How do I add Red dots to do that? Checked for tutorial but did not find anything.
I really like your “Open the video in the source viewer. Place the play head where you want to save the frame. Press i for in-point, then without moving the play head press o for outpoint.” for single frames.
Is there a keyboard shortcut for a series of frames if I know the first and last frame timecode?
Also wonder if I can Press i for in-point then move play head to end of frame series want and then press o for outpoint and so save all the frames between i and o?
I checked the Keyboard Shortcut Reference but did not find anything.