[Gimp-user] why autocrop layer would not cut all the blanks?

[bsmile <forums gimpusers com>]

Three questions, 


(1) can I group the layers together and then request autocrop? right now, I seem
to have to merge layers to be one to request autocrop. But that prevents me from
the ability to do changes as needed.


(2) After I merge to just a single layer, it seems autocrop can crop the upper
and bottom whites well, but not the left and right white, do you see the same
thing or any wrong I did?


(3) It seems gimp does not provide convenient tools like arrow etc, so I
basically copy/paste the arrows from powerpoint here, the issue is, it seems the
color cannot be copied. Is there way to deal with that?


Still a quite newbie, thanks for your kind help!

Attachments:
* http://www.gimpusers.com/system/attachments/515/original/fermisurface_a.xcf

-- 
bsmile (via www.gimpusers.com/forums)