[PyQt] QT Designer for Custom Widgets.

[objectref]

Hi,

I am reading Mark Summerfields' "Rapid Gui Programming with Python and Qt".
Until the chapter I am now, I saw that we can build a new custom widget by
subclassing an existing one and adding our own stuff. All this by code.

Can I achieve the same thing by using solely the Qt Designer ?? I mean,
let's say I want to make a widget that practically it is a collection of
some other, predefined ones, and I want to define some properties on it in a
way that I can see these properties in Designer's Property Editor. Can I do
this somehow ?

Thanks for any help!

Anthony