Yeah we often think parhentesizes can be omitted because it works somewhere, but it's not intended to be like that. I personally close them whenever possible. In the end it saves me much trouble.

Glad it works now!

But when the program is compiled, it's the same size even if we remove parhentesizes?

Sure, I think.
Only interpreted langage have difference size with less parenthesized.

I believe you mean,

It should be. Parenthesizes should only be left open if you're in extreme need of every byte of RAM available.

flexible-ish dropdown menu.
inputs - sub(MEN,Ypos*256+Xpos,numItems,"String1","String2","String3","String4") // String2-4 are optional. 0 < numItems < 5
String format:
cannot be more than 10 characters (bummer).
must be formatted like so: "4File". the 4 is the length of the string.
if you have a string greater than 9 in length, check this table to find out what you should put before the string. for example, ":Horizontal" will work.
outputs - integer 0-(numItems-1) indicating which option was selected

Lbl MEN
r1^256->X
r1/256->Y
0->Z
For(U,1,r2
Text(X+2,U-1*7+Y+1,{U*2+°r2}^r->V+1
!If Z:V->Z:End
If {V}>{Z}
V->Z:End
End
{Z}-48->{Z}
ZAsm(EFB44C6F2600)->V  //finds the length of a string in pixels. thank you calc84maniac!
{Z}+48->{Z}
RectI(X,Y,V+3,r2*7+2
RectI(X+1,Y+1,V+1,r2*7
0->Z
Repeat getKey(9) or getKey(54)
getKey->K
=1-(K=4)+Z->Z
!If +1:r2-1->Z
End
Z^r2->Z
End
Z*7+Y*256+X+V+3->r1:Z
Return

just so you know, this routine *can* fail. Quit and Save have different pixel-lengths on calculator but they'd both be represented as 4Quit and 4Save in my routine.since Save is larger than Quit, make sure you put 4Save as an argument before 4Quit in the parameter list.

also, if you want to use more than 4 options you can group them into categories and call the routine more than once. the next logical placement for a menu after selection is stored into r1 for convenience.

Creating Ans as a string:
Data(4,ᵀAns,0,0)→Str0AN
DelVar Str0AN
GetCalc(Str0AN,size_goes_here)

It creates a string which is the Ans variable. You have to call Delvar manually, because for some reason Getcalc() wasn't deleting it if Ans wasn't already a string.

It doesn't store anything, it just creates the string.

Well, it's a string of tokens, so you'll just have to manually count tokens