Alias title field" dropdown show EMPTY | HELP~

How to have item display in "Alias title field"?
I try to add "Alias" field in my catalog,

I type "alias" For "Label", "Description",and "Column name" textbox
follow by select "alias" For "Type"
THEN i got nothing to select under "Alias title field"....


Please help!!! thanks a lot

Moderator note: moved to Catalog support forum.

It sounds like you've done everything correctly, from looking at one of my catalog installations. Maybe some screenshots of these settings would help us see some mistake that you may have made.