Changing Trendline Colors, etc. without changing code

[Squirrely1]

I can't seem to find how you can edit an efs study without physically going into the code. I'd simply like to change the color/size of some lines for vwap, 30 min hi/low, etc. What's the easiest way to do this? Thank you!

[Squirrely1]

This is obviously for v11.2. This was very easy in v10