Hi,
I really agree,  that INS is fun. In fact, I find it easier to use than FMC.  And there are no missing T/D issues with it ;)
I always type in manually all the coordinates, as I think it is part of the "atmosphere and immersion" when flying an old aircraft like the 707, DC8 or VC10 to do some manual work as well.

If CS would make a 741/742, I would be fine with pop-up windows like in the 707, leaving the ones in the VC for display. Same of course with the up-coming Lockheed Tristar panels.

BR
Anders