Reprogramming ECU for more features- not performance

Does anyone know if you can reprogram the ECU to add features for different models?

I have an SR with upgrades and want to see what is possible. Keyless, Crawl Control, Adding TPMS and incline meter to Speedometer cluster, etc.

Carista is very limited.

I have tried an OBDII reprogrammer, but this is also limited.

I don't want to "trade it in" for another model, just wondering what is possible.

 

https://www.tacomaworld.com/threads/customizing-taco-features-via-computer.583740/

 

TechStream also doesn't do it.

https://files.acrobat.com/a/preview/6310810a-5ba1-4550-b79f-f55ca04f2383

I want the inclinometer and TPMS in dash activated. Maybe they are computer modules that are missing. I haven't found the info yet

Power windows up via key fob would also be nice.

 

The ECU only controls things related to the engine (engine control unit)

 

Electronic Control Unit...multiple ECUs are networked together via the Main Body ECU.
ECM(Engine Control Module) is one such ECU.

 

I have to find the right one and test it then.

https://www.toyotapartsdeal.com/oem...Submodel=&Filter=(1=2GRFKS;4=SR5;6=6FC;7=DCB)