Creation of a program for calculating LEDs

Programmer services are required. You need to create a program (analogue of LED Wizard) with the ability to create your own catalog of modules, with their size, number of diodes, color of glow, with the main technical characteristics (power, glow strength, wire length)
The following possibilities should be available:
-Placing of modules in the box
- placement of modules along the inner contour of the letter
- placement of modules in the middle of the letter
It is important to maintain a predetermined interval between modules (center distance between modules and rows) plus minus a few mm.
The program must exceed the capabilities of the existing macro eCut, as it is careless and not accurately arranged diodes in letters.
A more advanced middle line function is needed to run from the beginning of the letter.

1) and the main thing that is needed is the arrangement of diodes inside the letters along the middle line as in the example (the middle line comes from the beginning of the letters, the intercenter distance between the diodes is 120 mm as I set. In the kokut this distance is very different and the middle line is not neat.
2) this is the arrangement of modules in the box, I specify the center distance between the diodes and between the rows, set the indentation from the edge.
3) is the partitioning of diodes along the inner contour of letters, in general, there is a similar function in the coral itself, nothing complicated. The main difficulty in the middle line is that now I have to draw the line inside the letters every time, combine, draw a module. With the help of the flow function, I give a way to the middle line, set the intercenter distance, this is a long process that needs to be optimized.