The 
   General > Startup and
  Shutdown > Workspaces preference page allows configuration of the workspace prompting during IDE
  startup.
| 
          Option
         | 
          Description
         | 
          Default
         | 
|---|---|---|
| 
          Prompt for workspace on startup
         | 
          If this option is turned on then the workbench will prompt you each time it is started for what workspace to
          use.
         | 
          On
         | 
| 
          Number of recent workspaces to remember
         | 
          The maximum number of recently-used workspaces that will be remembered and presented in the "Workspace
          Launcher" dialog.
         | 
          5
         | 
| 
          Recent workspaces
         | 
          The list of recently used workspaces that are presented in the "Workspace Launcher" dialog.
         | 
          <none>
         |