# 2.6. The Toolbar

Open

  Like File->Load params.

Save as parameter file

  Like File->Save params.

Save picture

  Like File->Save pic

Zoom in

  Zooms in like middle mouse button (MMB) except that the center of the actual picture becomes the center of the new picture.

Zoom out

  Zooms out like right mouse button (RMB) except that the center of the actual picture becomes the center of the new picture.

Home

  Sets all relevant parameters of the actual type to its defaults and re-calculates the set. Parameters which are not relevant to the actual type (like colour scheme) stay untouched. If you've got lost here you'll find back.