I've tried the 7-seg example you have given but it cannot works. The display seems to be overlapped and did not display proper digit (158) as default. The code generated is too big (about 646 bytes).
I've write a 4 digit common cathode 7-seg display in assembly and it works fine. It only takes about 72 bytes of program memory.
I wonder if you can create a new function in your new version ldmicro that include a function call 3 or 4 digit 7-seg display.
The function runs on the assembly code that I will send it to you but of course the i/o have to be fix. May be you can modify my assembly code so that the user can reselect their desire i/o.
If it is possible, i will send you the assembly code and circuit diagram.

Thank you.