This tsl Places edge information of a Roof/Floor Element at a given position.
Catalog for this tsl can be set from DSP; argument to pass should be "DspToTsl; <catalog name>".
If the catalog name is set to e.g. "VAR57", it used variable 57 to get the catalog name.
The detail name can be resolved from the variable names of roof elements. @(VAR60) will replace the detail name with ...