Source code obfuscator configuration (Javascript)

Ideally source code (all or just certain text) that displays in browser (when we are logged in and work in app/and when guests just open the logon form) need to be encoded as abracadabra. 1- Support says you can manually replace them (except some extension in logon and similar) 2- Support say it is safe to use 3rd party obfuscators. It's Javascript obfuscator needed . They do use one in [login to view URL] already. They say any other one can be used. I need. 1. If manual replacement not such a big problem you can do that and test it that app works ok in browser. 2. Make instruction for me as a non-programmer 1-What was replaced 2. With what 3. Where (paths). By which tool-sofware did you do that. 3. If 1 step ok, then now we can use obfuscator that is already used in somefile.js. But I don’t know exactly what kind of obfuscator is used. So if software developer use that kind of obfuscator then I suggest to use the same. Or find better. You will need to configure it and test that app works ok. 4. Then I will need instruction 1- Which obfuscator we use, 2- how we switch it on, off. So that I will be able to repeat it when update of software is done. As I understand obfuscator can work selectively only on the part of code that is needed to be encoded.