Problems when editing units......

[Panzer]

I was editing the Panzer with the editor when I encountered a little problem. When I checked the little box at the lower left corner I noticed that only Ranged attack animation was selected. So I scrolled up and clicked on Blitz and Starts Golden age. However, when I did that Ranged attack automatically deselected itself. Every time I selct a different option, the current option deselects itself meaning I can only enable one option, while there should be 3 options enabled (Blitz, Starts GA and ranged attack animation). Can anyone help me out on this one?

[ixnay]

If you hold down Control while you select, you can select multiple options.