Again, Global parameters Home › Forums › Problems and solutions in GDL › Informations from the environment › Again, Global parameters This topic contains 1 reply, has 2 voices, and was last updated by Gergely Fehér 8 months, 1 week ago. Author Posts February 12, 2018 at 18:53 #3809 Frank StudzinskiParticipant On of our large clients use a customized zone stamp for several years. In this they uses many calculations with GLOB_HSTORY_ELEV, GLOB_HSTORY_HEIGHT. F.e. UKRD = GLOB_HSTORY_ELEV + ROOM_HEIGHT PARAMETERS UKRD = UKRD LOCK “UKRD” Since AC18 it works fine for them, but with 20 it didn’t work. They use the result for the UI and for schedules. What could be a workaround? They also ask why these values are not supported in Parameter Script? February 14, 2018 at 10:09 #3810 Gergely FehérKeymaster GLOB_HSTORY_ELEV is a project dependent global variable, so it is not allowed to use it in parameter script. In gdl elements there is no workaround for it. Gergely Fehér Team Leader, Library Team GRAPHISOFT SE Author Posts You must be logged in to reply to this topic.