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Slider: Radio Button Question

#1

OS (e.g. Win10): Mac OS X 10.14.4
PsychoPy version (e.g. 1.84.x): 3.1.0
**Standard Standalone? yes

This is a question about the slider component:
I want to use it as a radio button in a context where I can instruct subject to
‘select all that apply’
In other words, I want to display several items with radio buttons next to them and be able to have subjects choose as many or as few as they like.
My understanding of the slider / radio button is that you need to have at least 2 tick marks.
This is OK for TRUE / FALSE or YES/NO type answers, but does not work so well for ‘select all that apply’ – any ideas how this could be implemented (other than in a donkey way with lots of individually drawn rectangles that can be clicked with the mouse!)
Thanks
Marc