To align or distribute object, just select more than an object and use the property inspector, it will change this way:
Align objects tool
It permits you to:
- equalize object widths to the longer one
- equalize heights to the longer one
- make heights, widths and position the same for all selected objects
- align left, right, top, bottom, center (horizontal), middle (vertical)
- equally distribute horizontally and vertically
- move them with extremely precision
- change the layer order in the current card
To help you to align object, you go to Edit->Preferences->Apparence, there you can set alignin grid data (spacing, colors, etc.), then activate it on View->Grid. Now you can move object only on the "virtual" gird.