this is already possible. See: https://docs.royalapps.com/r2021/royalts/advanced/tokens.html#custom-properties
Let me know if you have any further questions or issues.
Wow, when I tried this the first time it didnt work...I must have done something wrong because revisiting it you are right! sorry about that
Not sure what went wrong but I'm glad it's working now for you.
It would be handy to be able to call a custom property within a web url. This is specially handy if you manage network devices that have webui's that are similar but have the devices name in them. This would allow you to generalize the web ui instead of having to create a unique web object in each folder.
https:\\Ciscort01\manage you could replace that with https:\\$customproperty.devicename$\manage