Redirect with a variable

I am trying to eliminate another redirection plugin using the redirection implemented in rankmath, however for some reason it isn’t working.
I am trying to achieve the following:
The source URL is like “https://mypage.de/s/”, where after the /s something else is added. So the source could be mypage.de/s/43425 or …/s/12345 …/s/76543

What I am trying to achieve is to have these urls redirected to another page, like this:
https://someotherpage.de/abcde/43425
https://someotherpage.de/abcde/12345
https://someotherpage.de/abcde/76543

I think you get the point? So whatever comes after the “/s/” should be added to the destination url.
The source url from the other plugin was a regex: “/s/(.*)”. And the destination would be like “https://someotherpage.de/abcde/$1”.

Is there any way to do this with rankmath, or do I need to keep the redirection plugin?
Thanks a lot!