On Jan 22, 2009, at 3:15 PM, Eric Pettersen wrote:
On Jan 21, 2009, at 5:05 PM, Matthew Dougherty wrote:

> 1) ability to create folders in the model panel so models can be  
> grouped
> 2) ability to have a model in multiple folders
> 3) ability to show/hide in a folder by a a single checkbox
> 4) ability to name the folder

These are good suggestions, and we have discussed adding some kind of  
grouping mechanism in Chimera given that there are a lot of situations  
where you want to treat a set of models as a single entity (e.g.  
multiple structures fit into a EM map).

I think #2 and #3 are in conflict though.  Really, I don't think you  
want #2 -- it's too confusing.  Say a model is in two groups:  you  
close one group -- what happens?  You hide one group -- what happens?   
You deactivate one group and move the other -- what happens?  Perhaps  
if you elaborated on the motivation for putting a model in multiple  
groups then some other alternative could be devised that provides what  
you need.

I'll open a change-request in our Trac database for "grouping  
mechanism" and include the above.  I don't really want to promise a  
timeline, but the issue is a concern of ours.
Seems like I never opened that ticket, at least I can't find it searching the database.  A year later I did open a very similar ticket (#8253) which has now been implemented.  So the Model Panel now supports grouping (and ungrouping) models in the current daily build, which at least minimally satisfies points 1, 3, and 4 above.  The groups can be named as you wish, and changing active/shown/color/etc. for a group changes the corresponding attribute of all the models in the group.

Right now if multiple models are opened from a single data source they are automatically grouped.  This comes into play most often when opening NMR ensembles.  If anyone has any strong opinion as to whether this is a good default behavior or not, please speak up!

--Eric

                        Eric Pettersen

                        UCSF Computer Graphics Lab

                        http://www.cgl.ucsf.edu