You could highlight as much of your CODE as you want, right click, and select "Group" In your Coding it will create a line that shows
GRP1 =GROUP/SHOWALLPARAMS=YES
Just turn that YES into NO and it will hide all you highlighted in that group, and if you need to do some editing yourself just change it back to YES and it will show everything as normal. I do this on very long programs and rename them as it pertains to the part. Instead scrolling, scrolling, and scrolling
I usually just follow Dan with protected mode. They may view the code, but don't have access to edit until you enter in the password to turn protected mode back on.
I might start doing that more often, saves trouble of closing the program constantly to turn off/on protected mode when going in and out frequently. Just don't want to be the one that left it off and someone still found a way to goof it up
for Quindos, you can password protect your programs/WDBs. With SAVE command, there is keyword PWD. With 'PWD=Y' you will be prompted to enter a password. In the future when running that program, if it stops, you'll have to enter the password to get to the command buffer. Also, when loading the WDB with LOAD command, you be prompted for the password.