I don?t know if this is possible to do in GDL with story sensitivity or not. But anyway I would like to be able to place an object and then go within the settings and adjust it so it would show on story 1 and story 4 only. I understand that I could reach this by layers, but where I work you got to stick to a standard set of layers and are unable to change due to B.O.M. generating correctly.
you can do it by checking global variables in your 2Dscript (go to AC help-GDL manual-Appendix-Global variables-Story Information) so you can hide the object on particular storeys. However, it does not work really good, because when you hide the object it will leave a hotspot on plan (and particular storey) instead (basically, you can not hide it completely) and what is worse you can accidentally select and delete it. So it is a very dangerous solution. Unfortunately, this feature has been on the wishlist for ages.