[Help]C# Keylogger Limitation to a Specific Process, Log Emailing and Keys Filter

So i have read this amazing how-to tutorial:

https://null-byte.wonderhowto.com/how-to/create-simple-hidden-console-keylogger-c-sharp-0132757/

And it worked amazingly.

Then i saw in the Further Improvements some cool tricks that can be done, but because im new to this functions i kinda dont know how to write them.

Do anyone know how can i limit the Keylooger into a specific process, so it will log only the keys from it?(for example, to "chrome.exe")

Maybe you know how can i send the log file through mail in a specific hour? i saw some SMTP tutorials but without any attachement/timing

And last question, how can i filter the keys? (for example, when it writes "NumPad1" it will write instead "1") - NVM i did this one on my own ^^

BTW im new here so dont be to harsh with me ^^

I also study C# for several years, but never got to DLLs and things like that, I really appriciate any help :)