Question: How to find all Latex:-Settings() options and what each one does?

I am having hard time controlling my Latex:-Settings now. The issue is that I do not know what each setting accepts as values, and what each value does.  The way I've been doing it is by collecting what useful ones posted in this forum, and what it does and save it in my cheat sheet. 

But now I see I need to change something, but not sure to what.

Is there a way to find what all the settings are, and description  of what each does and accepts as values? For example, 

            powersoftrigonometricfunctions

Accepts mixed and computernotation  But where are these described in terms of what they do? does it accept anything else?  Notice that ?leavespaceafterfunctionname does not show anything.

If I do 

restart;
Latex:-Settings()

it gives

[cacheresults = true, invisibletimes = " ", leavespaceafterfunctionname = false, 
powersoftrigonometricfunctions = mixed, spaceaftersqrt = true, usecolor = true, 
useimaginaryunit = I, useinputlineprompt = true, userestrictedtypesetting = false, 
usespecialfunctionrules = true, usetypesettingcurrentsettings = false]

But do not know how to obtain full description and possible value of each to see what they mean and do.

I think having Latex:-Settings() is a great idea, as it allows maximum flexibility for user to configure how they want the Latex output to be, but as more options are added, this type of information become more important to know and to keep track of.

I am using 2020.2 and Physics version 893