Open the .cs file in Notepad or another Text Dco editor. Look for these lines of code
private void CargoHUD(string reason)
{
if (debug) {Puts($"HUD STARTS");}
DestroyAllHUD();
HUDlist.Clear();
double colonnegauche = 0.10;
double colonnedroite = colonnegauche + 0.05;
double lignehaut = 0.95;
double lignebas = lignehaut - 0.03;
int round = 0;
List<Vector3> positionlist = new List<Vector3>();
List<BaseEntity> droplist = new List<BaseEntity>();
Vector3[] positionarray;
BaseEntity[] droparray;
/*if (reason == "spawn")
The 2 bolded lines of code will affect where the first AIRDROP indicator lands on the screen .. The number is a percent of the screen
colonnegauche affect the left/right location, 1 = Far right of the screen
lignehaut affects the top/bottom location, 1= Top of the screen.. (Would probably leave this one alone)
Just change them incrementally, You will have to delete the .cs file that is installed and then upload the one you make the changes to.. I just throw a few signal grenades to get the indicator to pop up. then repeat until I get the boxes where I want them