[ADDED] Positioning multiple parts

[Eugene]

I have great difficulty positioning parts, surely there is a simple way of moving and rotating parts, such as the Makerbot software.

[JoeJ]

I just use they mouse shortcuts to move the models interactively. Super simple and it doesn't get any quicker.

If you don't know about the shortcuts, read the quick start guide (help --> quick start guide)

[S3D-Jason]

The model manipulation system was completely overhauled for version 3.0. It is now much easier to quickly reposition models on the bed.

See this video for more details: https://www.youtube.com/watch?v=HIhpUfCorSM