The only way I can think of to do this via the access point, is to create a task in the QMC and have the trigger be an external event.
You can then write a macro in your document which executes an EDX trigger and starts the scheduled task running,
just need a button with an action to call the macro then.
Have a look at this maybe for more details
Hope that helps
Could you please explain a bit more about your exact requirement? Would you like run the load script behind the same application and refresh the data ???? Additional please read below link