This dialog box lets you configure the tabs in the Contents Window. You can reorder the settings and/or hide individual tabs which are of no interest to you.
"I have been using the CRiSP editor for about 3 years. It is by far one the best text editors I have ever used. It is very reliable, and I have yet to lose any data using it. It makes the editing and compiling process effortless, and it frees up more time for other tasks. The colorization, buffering, and column editing features are well worth the cost of this software."