Help with Object Inspector / Property Grid Component

[surgi]

Hi there. I managed to get OI example working (..) and I need to display (via the Property grid) something like this

+SET1
&nbsp i1 : integer
&nbsp   s : string
+SET2
&nbsp   color:tcolor
&nbsp   +SUBSET1
&nbsp &nbsp      i2 : integer
&nbsp &nbsp      s2 : string
s3 : string

could anyone send me how component TMyComponent (used in OI example) should be done?

Thank you.

(need it because of remake of Rthree Exec (see rthree.org))