I did this one, time ago. It is for ArchiCAD from version 10.
Parameters are in Italian, but the graphic user interface can help a lot.
It creates glasses and spiders, but you can choose the number of panels (from 1x1 to 14xi14) and enable/disable every single glass and every single spider.
So, if you only need one spider, set it to 1x1 glass, disable the glass panel and 3 of the four corner spiders.

User interface has four pages. On the first one you set all the general parameters (dimensions, resolution, materials, pens)
On the second one you choose the number of glass panels and which ones are on and off. This is done by a graphic array with checkboxes. Each checkbox representing one glass, and a red symbol representing an active (ON) spider.
Similarly, on the third page you choose which spiders are on or off. Here too you have an array of chechboxes to activate/deactivate the corresponding spiders. Between checkboxes there are blue squares, representing the active (ON) glasses.

On the last page you can activate (and set parameters for) gasket between glasses, and connecting rods.