Hi TBDY 2018 7.11.3 When you make a semi-rigid diaphragm solution, the slab tension controls (Tension / Slip / Pressure) are made automatically. TBDY 7.11.5 The control of the safe transfer of earthquake loads from floors to walls was completed in version 10.18, whose tests are still ongoing. It will be shared with our users in beta in the coming days. You cannot do these controls when you solve with the fully rigid diaphragm option. If there are transition floors in your building with basement, if your project is non-beam slab, if there is A2-A3 irregularity, you should make these controls by solving the semi-rigid diaphragm. It does not program the A2-A3 irregularity check. If your project has A2-A3 irregularity and solve your project semi-rigid. When you make a solution as a semi-rigid diaphragm, you must meet the following Slab stress controls (Tension / Slip / Pressure) and TBDY 7.11.5 control of the safe transfer of earthquake loads from the floors to the walls.