Codec allow/disallow for PJSIP extensions should be defined at endpoint level

A PJSIP extension can have multiple endpoints connected to it. Each device may require a different codec selection. Having codec options at extension level is useful, but it would be better if one could define codec options individually for each endpoint connected to the extension.

Concrete case:
I have an extension with both a Yealink T46G and a Grandstream DP715 (DECT) endpoints. Recent firmware upgrade introduced G722 codec support for the DP715 but it is not working well so I need to disable G722 for the DP715. Right now I need to remove G722 codec from the T46G as well because I cannot set it per device.

Possible solution:
When I am editing a template on EPM I can click on a supported device and a popup opens to change model-specific options. Currently, this pop-up for the DP715 model is empty but it could contain codec options.