The option to choose

Hello.

I finally install Boot Camp...But....

When I install Boot Camp, the installation created a partition 30 Gb, but did not called it "Bootcamp", but a common name like Disk...

I managed to open Windows 8 and change the name of the partition to Bootcamp.

I can see that in System Preferences, "Démarrage" (Start-up..), I have the option to choose between:

1. Bootcamp Windows

or

2. Macintosh HD, OS X, 10.11.2

But this choice is for ALL my start-up...

How can I have the option to choose between the two systems when I open, start-up, my Mac Book Pro ?

The only way I found is to start with Cmd-R keys...to open the special menu... and when I close this menu, then I am asked which systems I choose to work with....

Must be a more direct way...

Thank you