[NOOB QUESTION] how can i edit a function to return 1 in IDA pro?

[Stingered]

sendersu is correct. But take a look here:

https://resources.infosecinstitute.com/topic/applied-cracking-byte-patching-ida-pro/

and here:

https://github.com/keystone-engine/keypatch


Update:

In going back, for 32-bit patching, you will need to use PRE-7.0 version of IDA Pro for Keypatch to work properly (not compatible with v7.x) and 32bit python/keystone. For v7.x and later use 64bit python/keystone with Keypatch.py

Grab latest Keypath.py here:

https://raw.githubusercontent.com/keystone-engine/keypatch/master/keypatch.py