Why does nobody answer this? ...
Probably because there is nothing we can suggest to help you. I can't see your example image because Dropbox is blocked at work (why not just upload it to the forum?), but from your description it sounds like you just need to hide the column.
Oh...well, that's weird. I don't have that problem. What happens if you toggle that column to display track mattes, etc.?
What OS are you using? What are the specs of your machine? What is the screen resolution?
Mac OSX 10.9.5
All other colums dont have empty spaces, just this one.
I changes machines for better performance so its not spec related, but here they are:
Modellname: MacBook Pro
Prozessortyp: Intel Core i7
Prozessorgeschwindigkeit: 2,3 GHz
Anzahl der Prozessoren: 1
Gesamtanzahl der Kerne: 4
L2-Cache (pro Kern): 256 KB
L3-Cache: 6 MB
Speicher: 16 GB
SMC-Version (System): 2.19f7
Seriennummer (System): C02N31L5FD59
NVIDIA GeForce GT 750M
VRAM (gesamt): 2048 MB
2880 x 1800
I once got a hint that it is related to the fact that my system language is german, but the problem occurs with every change in the system preferences
This clearly is an adobe error to me. But im not an expert.
I just want the program not to waste space for nothing
I have never changed anything specifically, this is a basic (new) macbook pro with the basic installement of After Effects. Why is this not working?