Some screenies:
CAMPGR44.DAT from SPAW45 loaded. Note that the number of special events and special missions both equal zero, so those tabs are not active.

Show set-up for editing clicked

The name of the defender's capital (Weiwak Harbour) clicked brings up the map.
A different one can be selected.

The forces tab, many sliders are used for editing

To switch scenarios I had to exit and re-run.
This is default 1.28E in which the the numbers of special events and special missions are not zero so their tabs are active.
Scrolling down to special mission #2 has seven of the possible eight targets listed in green boxes.
Clicking on one of these green boxes will bring up the map, with the appropriate radio button selected, so that a new target can be selected if necessary.

Please note that on most pages there is a green "Enter these changes" button. Clicking it not only puts the numbers in the grid, but writes them into the file. Editing takes place "on the fly".
I have deliberately left the grids visible so that we can see the actual values.
I may produce another version with an editing checkbox. This would let the changes to the grid be made, but allow the user the option to write to the file.

Jel