if you want to show empty fields you can simply, pass an empty string at that point.
you would have to multiply dortmund TU and dortmund FH to a new arrayindex where username and email is empty.
how safe are you with programming js, iterations over arrays, objects. /basic coding stuff?
Actually, I am newbie with JS. My main job is embedded software with C/C++ or Python. I got your idea but I suddenly think, maybe I need to use usename and email to delete/edit data in database. Is there any way to hide username and email?
use a function node, pass your data in create a new array, delete username and email.
the point is: ui table node will only accept arrays with a depth of "1"
so you would need to extract the data you want to show from the array in "location".
the syntax is basicly the same as in C.
ui table wont let you do hide and so on
you would need a button on the dashboard that goes into a function node, which than will operare over your data somehow and sends the new prepared data to the ui table node.
actually what you are planning is not difficult, it just needs some effort.
maybe you can describe more clearly what you exacly want to do and we^ll work things out.
sort by/ hide/ show which data exactly/......