Manually calculating end dates

[jstet]

Refering to: https://www.stolpersteine-konstanz.de/motz_friedrich_wilhelm.html

Should we tell people to calculate end dates if an entry only mentions e.g. the time someone spent in prison but not the exact end date?

Maybe then they can check "nur vermutet"?

[jstet]

if user has to calculate, just add month and year and click "vermutet" -> add to instruction and tooltip