Slide show "pause / resume"

[markg]

Slide show could be in manual and automatic mode. Manual mode requires user PgDn/PgUp keys (and arrows keys!) to change a slide. Automatic mode reloads next slide after NN sec.

Right click on the image should show menu option "Pause / Resume" automatic slide show. The "space" hot key is a good candidate for this option.

Press "space" to exit automatic slide show mode, PgDn/PgUp remains an option to navigate manually, press "space" again to resume automatic slide show.

Visual indication with icon "clock" for automatic slide show and "clock with red cross" for manual slide show would be helpful.