License Delivery maintenance is expected to occur on Saturday, November 30, between 8 AM and 11 AM CET. This may cause a short 3-hours outage in which license-related tasks: license key upload, download, update, SSA validation, access to the license pool and Graphisoft ID authentication may not function properly. We apologize for any inconvenience.
Modeling
About Archicad's design tools, element connections, modeling concepts, etc.
But, it is very easy to select walls using "Find and select" with existing wall height as a selection parameter, and then change them all to the new height.