Hi, David, We have already discussed this issue in bug#12927. :) Eiffel Studio doesn't save both debug and non-debug widgets layouts at same time when saving layout. It only save current mode layout (normal or debug). So you can load a layout which saved in debug mode into normal mode Eiffel Studio, vice versa. So, the reason why Clusters Tool and Favorites Tool are not show after loaded `aaa' is they are not shown when you saving them in debug mode. Eiffel Studio 6.0 working in this way too. See attached Eiffel Studio 6.0 Flash video. After decompress, you can open the swf file with Firefox or others. Sorry for current layout saving mechanism make you confused. We decide whether to save both (normal and debug) widgets layouts at same time as you suggested in bug#12927 now.