[wish] Building::object tools

It could be VERY useful to add few simple tools to the edit panel. I know that some of them have been developed by using scripts, but internal tools would be more peforming and easy to use

* mirror with respect XY, XZ, or YZ planes
* mirror with respect plane orthogonal to the line from a given point and the center of object
* rotate the object with respect an axis passing trough a given point
* align centers of several object
* join two faces of two objects if they are "equivalent" faces (same area, same perimeter)

Yes, yes, and YES! These are all things that would make building so much easier! I am not a math wiz, but I do have design sense and I love to build, but some of the things that you have to do to get a quality build, such as aligning faces and proper mirroring, are a massive pain in the posterior regions! All the silly little calculations required to do these things wouldn't be too difficult to put into a toolset, and they would do SL a huge favor, as it would increase the overall quality of builds in the long run. NO MORE LOPSIDED AIRCRAFT AND TEETERING WALLS! I second this wholeheartedly!

1) As I mentioned elsewhere, being able to stretch or position a hole in a prim independently from the overall shape of the prim.

2) To be able to make a true segment i.e. slice straight across a disc or sphere other than at diameter.