How to create one selection button for all the rig controllers in Autodesk Maya?
How many times did you forget to key a part of your pose when you are using manual key? Well it happens to everyone. So it is good that you select all the controllers and key the position so that you do not miss any controller. Generally when we need to select all the controllers we have to switch to a different view for zooming in and out. So every time you have to switch. But here is solution to your problem, where you do have have to switch and use the same view.
This is what you need to do :
1. open the script editor and clean the history.
2. Select all the controllers
3. Now select all the script on the editor. click middle mouse button and drag it to the 'custom' tab.
4. A new window will open, select 'MEL' option for that.
5. Now you will see a Maya icon on the tab. If you select that icon you will see all your controllers are selected.
6. you can give it a name by clicking right mouse button on it and go to 'Edit' and change the 'Lable Name'
Now you can select your controllers anytime, from any view and also you wont forget to key any position.