how do i make a subtool from some parts of the mesh??
example: lets say that i made a base mesh and i want to work on the ears only and i want the capability to hd divide how can i make them as a different subtool?
the secend question is more a request then a question
how do i make this part of the eye?

http://img300.imageshack.us/img300/5964/helpni7.png
and one last quetion.
how can i make this kind of wide base

or
http://www.pixolator.com/zbc/attachment.php?attachmentid=91905
or
http://www2.zbrushcentral.com/uploaded_from_zbc/200404/user_image-1082976572eew.jpg
or
http://www.zbrushcentral.com/zbc/attachment.php?attachmentid=102919
http://www.zbrushcentral.com/zbc/attachment.php?attachmentid=102920
non of the above is my work.
Thank you
Ben