Adding event listener to an element in property

Can i add an event listener to an element in the property view?
and if yes what are the supported events for an element type select ?

You can add event listener only to the whole property view.

http://docs.webix.com/api__refs__ui.property_events.html

If it is not enough, please provide some more info, for which scenario you need such kind of events

thanks maksim,
but i have another question.
can i disable an element in the property ?

You can use the onBeforeEditStart event of the property view that can block editing for the needed element. http://webix.com/snippet/092645b6