Simple Script that do incremental face extrusion (useful to create stairs for example)
# Installation:
1-extract files
2-copy Stair Extruder.mse to 3dsmax\script folder
3-copy StairExtruderMacro.ms to 3dsmax\script\startup folder
4-restart 3ds max or run StairExtruderMacro.ms from script menu run.
5-add it to ur desired UI (menu,quad,toolbar...)