How can i find mission codes for lua skips?

[RealRobertBrownieJr]

hey all, so yeah basically there are a few mission skip scripts i have found (cluckin bell and dre)
and I wanted to use them as a base to make a few mission skip scripts, I was wanting to make a script to skip the first dose and last dose missions, and also to skip the diamond casino agatha missions but I am not too sure where to find the required MPX_yadayada that I would need

see i did find some skips which i was gonna use as a base

Dr. Dre Contract Skip.lua:
script.run_in_callback(function()
natives.load_natives()
local IsOnline = NETWORK.NETWORK_IS_SESSION_STARTED() and not NETWORK.NETWORK_IS_IN_TRANSITION() and not STREAMING.IS_PLAYER_SWITCH_IN_PROGRESS()

if IsOnline then
	log.info("\r                                                                \r\n| \27[3;94mLua Script\27[m - \27[4mDr. Dre Contract Skip\27[m | \27[92mInitialized successfully\27[m") -- By ImagineNothing
	stats.set_int("MPX_FIXER_STORY_BS", 4095)
	notify.info("Script - Dr. Dre Contract Skip", "Success! All preps skipped.\nNext mission: Don't F* With Dre")
else
	notify.info("Script - Dr. Dre Contract Skip", "Please join any freemode session and reload the script.")
	log.info("\r                                                                \r\n| \27[3;94mLua Script\27[m - \27[4mDr. Dre Contract Skip\27[m | \27[33mPlease join any freemode session and reload the script\27[m")
end

end)

Cluckin' Bell Raid Skip:
script.run_in_callback(function()
natives.load_natives()
local IsOnline = NETWORK.NETWORK_IS_SESSION_STARTED() and not NETWORK.NETWORK_IS_IN_TRANSITION() and not STREAMING.IS_PLAYER_SWITCH_IN_PROGRESS()

if IsOnline then
	log.info("\r                                                                \r\n| \27[3;94mLua Script\27[m - \27[4mCluckin' Bell Raid Skip\27[m | \27[92mInitialized successfully\27[m") -- By ImagineNothing
	stats.set_int("MPX_SALV23_INST_PROG", 31)
	notify.info("Script - Cluckin' Bell Raid Skip", "Success! All preps skipped.\nNext mission: Scene of the Crime")
else
	notify.info("Script - Cluckin' Bell Raid Skip", "Please join any freemode session and reload the script.")
	log.info("\r                                                                \r\n| \27[3;94mLua Script\27[m - \27[4mCluckin' Bell Raid Skip\27[m | \27[33mPlease join any freemode session and reload the script\27[m")
end

end)

Any help would be greatly appreciated like where i can find MPX codes for the misions etc

Thanks :)