I can't select A-10A in DCS editor when i create map editor.why?

[cubewang]

 I create a mission ,open a map ,select filght,but i can't select A-10A.  why? please help me ,thx.

[razo+r]

Is your historical filter turned on? Its the clock symbol at the bottom of the editor. 

If yes, either turn it off or set the mission to a date when the A-10A was still in service.

[cubewang]

11 minutes ago, razo+r said:

你的历史过滤器打开了吗？它是编辑器底部的时钟符号。 

如果是，请将其关闭或将任务设置为 A-10A 仍在服役的日期。

thank you very much .