I make different designs, then load a specific design into the unigui server from XML files Each design has different VCL components and logic, I can use javascript code loaded from a file, or perform simple javascript functions, but for the example from @mhmda and yours, I have to write the code directly in the unigui application. I want to get around him. How my unigui server currently works: when starting unisession 1. load an xml file 2. Creates all visual components fr