Updating values in open windows

[Elec11]

Hi all,

I'm currently messing around with the OpenRCT2 Plugin/scripting system.
I would like to update values in my window based on hooks, for example more precise financial information.
Currently I'm closing and opening the window every ingame day, however it's slow and the window opening noise gets old really quick.
If any of you know how to get an updatable value inside of the window, please share your ideas!

Thanks in advance.