Mind Mapping Software Resources

When linking a task to an existing task, it gives a search function to search for the task we're linking, but we can't put in the ID or URL of the task to link it. We have to put the name of the task, which can be challenging if we have tasks with similar names/keywords.

Inspired by similar tool from a concurrent : we have to opportunity to divide a board on chapters with real hyperlink and summary. If i could create N chapters, having a menu (easy to find) providing my N chapters and opportunity to reach any of them by clicking on the chapter (as we can do in Word, some website,...), it would be great

This is a 30-minute math test with 20 questions. The candidate arrives with the link I sent them, then takes the test, and 30 minutes later it automatically ends? And I receive their score out of 20. Awaiting your solution, THANK YOU.