How to eliminate the question ID number from the url?

This is possible from the next version v5.2.1. It will use new Joomla routing with remove IDs option.

thanks for your reply.

Do you when version 5.2.1 will be released?

Thanks

I just created a minor build with this feature. Please update it.

thanks a lot, I did it. Was it 5.2.1 already right?

Now, should I change some settings or just delete the id from url right away?

Thanks

Go to Components -> Community Answers -> Click on Options button on toolbar -> Integration tab -> Enable Modern routing and Removed IDs options.

Please note that modern routing expects proper menu items. So make sure you have created menu items at least for the TOP level categories.

Thanks for your reply.

I have a question: would it be possible to delete the ID from the questions url one by one? I mean, to choose the particular question from which removing the ID from the url? I have many questions, and if I delete the ID from ALL their urls now at the same time, that would be hard to redirect singularly each one to the new url; I'd miss some, generating 404s.

Is that possible? 

thanks

That's not possible.