Re: WIND LOAD Hello; TS EN 1991-1-4 is currently only made for open type structures, for example scaffolding. Also, work continues for closed structures. Do not use for closed structures at the moment, continue with TS 498. The option to apply to a rigid diaphragm means that the calculated loads will be applied to the relevant axis of the diaphragm if you have modeled on reinforced concrete slabs or steel elements with composite or concrete slab options. If you do not use this option, for example, in steel structures, wind loads come on elements such as steel columns, beams and purlins that you define the coating on, and you can examine these loads from the right click analysis model loads wind loads section on the perspective screen. At the same time, if you receive employee reports, they are summarized in a table on the load page. Good work.