How to put resources in a custom tab in the drawer

[dogman1214]

Hello, now that i was able to add a 4th tab, I dont know how to add the stuff insdie the tab, where I want a wattage monitor, which's information is pulled from my battery (BAT1) information and also a toggle for gpu mode, using supercfg.

can you tell me how to add resources inside of the tab which can be interacted with and stuff, and hopefully a template to streamline the process