Hi, Manu, The resizing policy you mentioned, I think it's exact the same behavior as currently Visual Studio does. Attached video shows comparison among Eiffel Studio, Visual Studio and Eclipse. In the video, we can see Visual Studio's editor gets smaller/bigger when resizing. However, if Visual Studio have beenre-sized tiny, Visual Studio will forget tools' split positions. Eiffel Studio and Eclipse doesn't have this problem. Eiffel Studio resizing policy is same as Eclipse's in revision#76177. Personally, I think maybe current behavior (revision#76177) is the best since it's simple... You said we should set the proportion when EiffelStudio gets smaller than a certain size. The "certain size" I think is not easy to determinate.... The flickers problem is trade-off of this resizing policy (revision#76177)... Your suggestions/comments are welcome.