Yes, it is funny to work with ppm, there is a section for it in the help, but basically you will need to figure out how the commands work by yourself.
In ppm section there is a link to SD, another ppm editor and in there you will find better example on how the different commands work and if you make it in TC you can open the ppm in SD and it will explaine better what if there is some fault in it too.
TC let you know the line the fault is on, SD tell line and what
In example, 1 legal command in TC ppm is **, but now place as far as i have seen is it explained what it do or how it work, i learn from SD that it is multiply x times, , so 5**10 is 5 in power of ten, only takes 4 years before i see it in SD
Another thing is that if you explode all the Groups inside the ppm, it is possible to use the databasetool for get a material list from it (BOM)
When you adjust the ppm to fit inside a TC house, it do impress customers when you close normal architect objects and the PPM stand inside it, "eye candy" one woman call it some years ago, i have adobted that word
You cant get the PP to render because the example is only made of single lines, they are not a closed profile, so you only see the edges of the profile, there is nothing in between.
A workaround is to use the Pickpoint Hatch inside it, make a separate layer for it, after finish Hatch, Select it by layer, drag it away from PP, explode 1 time, delete the solid hatch( polyline) and you are left with an closed polyline that can be extruded.
But it is possible to make it surfase of it i believe, as think to remember Dean did that in another tread.