Property sheet - Column width

Hello,
Is it possible to define width of the columns?
We need to define the first column at 200 or 300 pixels and we dont’t found this option.
Thank you

We have found a solution with css (for our needs!) :
.webix_property_label{ width:40% !important;}
.webix_property_value{ width:60% !important;}

It’s OK for property sheet display, but the entry field is not correctly positioned…

Check
http://docs.webix.com/api__ui.property_namewidth_config.html

Perfect.
Sorry, I haven’t seen this property!