How do you search partial strings in Qlik Sense URL?

[starke_be-terna]

Hi community!

I want to use the URL path to do selections dynamically. This works great:
https://<MY_SERVER>/<MY_APP>/sheet/<MY_SHEET>/state/analysis/select/Dim1/[A] 

I need to use search by substrings as well (for example "*A*"). 

These do not work: 
* Plain: https://<MY_SERVER>/<MY_APP>/sheet/<MY_SHEET>/state/analysis/select/Dim1/[*A*] > this throws error "Invalid parameters"
* URL encoded: https://<MY_SERVER>/<MY_APP>/sheet/<MY_SHEET>/state/analysis/select/Dim1/[%2AA%2A] > this throws error "Invalid parameters"
* Without brackets: https://<MY_SERVER>/<MY_APP>/sheet/<MY_SHEET>/state/analysis/select/Dim1/*A* > is simply ignored

"Search Terms" are mentioned in the help article (https://help.qlik.com/en-US/sense-developer/November2022/Subsystems/APIs/Content/Sense_ClientAPIs/ap...), but sadly there is no example on the syntax for this.

So my question is: How do I do this and is there any (online) documentation for all options of the select keyword in the URL?

Best regards,
Benjamin