I'm not quite sure I understand the structure here, and seeing the frame edges would help. If you are going to want the channels in boxes, though, I think they need to be a separate frame from the headings (especially if you want round corners, which you can't add to a table easily). Span columns would certainly work -- I use it for putting headlines on news stories all the time, but it might make more sense to thread together wide one-column frames and deep multi-column frames and set the style onthe headings to start in next frame, then adjust the multi-column frame depths.
Currently, I may need to add 4 listings within section 1. I will need to increase the frame height, and move section 2. Section 2 may need 2 more items, I will need to increase its height also. Frames 3 thru n will all need to be moved down to accomodate sections 1 and 2 additional space. (Prior to today, the section heads are seperate frames which need movement also - 14 items need to be distributed.)
I have been working, without success, towards using a break character before the Section Heads. It seems that one unthreaded frame would simplify this.
OK, first, I really don't understand why the section heads need to be anchored objects, and if they aren't you can use a keep option to start them in the correct frame.