There used to be information about this feature
(https://trongate.io/docs/information/advanced-custom-routing)
but I can't find it any longer.

http://web.archive.org/web/20221002202559/https://trongate.io/docs/information/advanced-custom-routing

Here you go. Different headline but the main page content is the same:

https://trongate.io/documentation/display/php_framework/understanding-routing/custom-routing-practical-examples