How do I get in and out of Catalogue Editor (CE.exe)

This would be the process

1) What u need to do is go to tools and click catalogue setup
2) highlight the catalogue you are having a problem with ie universal kitchens NDS
3) Then on the right hand side, click the “check out catalogue” button
4) Close the catalogue setup
5) Go back to tools and click on Launch Catalgue editor
6) Click file open and then u will see the catalogue you checked out. Click OK
7) Double click on the “colour table”
Double click on the “Shader catagories”
9) Press ctrl + A
10) In the edit menu please select clear.
11) Click file exit and exit the catalogue editor
12) Go to tools and catalogue setup
13) Click on the selected catalogue and click the “Check in catalogue” button on the right
14) Close this down and continue designing!