There should be, it's around line 60. Here's mine just to help a bit. Just remember, mine won't look exactly like yours.
//Load in compiled functions
call compile preprocessFileLineNumbers "\z\addons\dayz_code\init\variables.sqf"; //Initilize the Variables (IMPORTANT: Must happen very early)
progressLoadingScreen 0.1;
call compile preprocessFileLineNumbers "\z\addons\dayz_code\init\publicEH.sqf"; //Initilize the publicVariable event handlers
progressLoadingScreen 0.2;
call compile preprocessFileLineNumbers "\z\addons\dayz_code\medical\setup_functions_med.sqf"; //Functions used by CLIENT for medical
progressLoadingScreen 0.4;
call compile preprocessFileLineNumbers "scripts\compiles.sqf"; //Compile regular functions
progressLoadingScreen 0.5;
call compile preprocessFileLineNumbers "server_traders.sqf"; //Compile trader configs
progressLoadingScreen 1.0;
fnc_usec_selfActions = compile preprocessFileLineNumbers "scripts\fn_selfActions.sqf";
What I highlighted is what you'll want to add, you can change the \scripts\ to whatever folder you've placed your custom selfActions in.
If you havent already, I recommend using notepad++ it will help a lot with reading the files.
Also try copying - progressLoadingScreen 1.0; - and press ctrl+f in notepad++ and paste it there, this will help you find it a lot faster.
Make sure you change the /scripts/ to whatever folder you have your custom selfActions in.