Plugin to change variables during print

Just installed Octopi a few weeks ago, and I feel I have it working fairly well. There is one thing I may be missing here.

I started a print in Cura, but forgot the last print I did I set it to print at 50% speed. I know there is a plugin that will allow you to change filament during the print, but is there a plugin that will change other variables during the process?

Retraction is another option I would love to control a little better. Hopefully fixing stringing issues during mid-print.

Thanks in advance.

The default control tab has options for feed (print speed) and flow (extrusion multiplier) rates. No other plugin can change those on the fly, except maybe the EEPROM settings plugin, which can adjust available firmware settings, not slicer settings.