Replication / Fire Events via Widget

Hey guys i just build a simple Item Pull Storage with a Widget to open. When i press on the Icons (see Screenshot) it will set variables and run a event in the Structure himself. Works fine in Singleplayer. But on Dedicated Server Mod the Widget doesnt set any variable or run a event in the Box. (u can see in the screenshot that it fires clientside in the widget). Now my question:
How can i run event / set variables via Widget for the Serverside?