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Improvement
 - 
    Resolution: Fixed
 - 
    
Major
 - 
    None
 - 
    None
 - 
    None
 
- 
        4.2 RC1
 - 
        1 - Middle term
 - 
        2 - Normal
 
Today we load all tools (or tabs) and the application is slow.
It will be best to ask the user on application loading.
"We have a lot of opened tools. These number of tools could slow down the application. Do you want ?
- retrieve these tools
 - close these tools"
 
It will be good to use a configuration parameter to adjust the number of tabs.