ConceptBoard

Question1: List all options but differentiate present/absent (e.g., green/red -- but better colorblind alternative; like first option)? OR only list the present options (like second version)?
Question2: Just list the options (like first version) or make them links to collection of all those that have the option (like second version)?
Rights:
Rights:

Collaborative whiteboard software. Free version has only single editor, who can sort-of screencast by chat/commenting and controlling pointer of all viewers. Divided into frames/sections for presenting.

Commercial tool, free basic version, registration required for editor (but not for viewers, and GDPR compliant). Released 2010.

single user, 100 objects, unlimited boards, 50 viewers, export
$72/year
10 users, unlimited objects, 10h/month screensharing, larger files and storage