Where is the menu link "Layout categories"

[krakoukass]

Hi ! I'm working on a new website with J!2.5 and VM2.0.26.
On an other website with VM 2.0.0RC3, to create a link VM, I can choose "Layout categories" in place of "Categories list". With "Layout categories", the description of the categorie parent displays on the same page with the list of the sub-categories.

With the last version of VM, I cannot choose that, just 'Categories list" wich displays only the list of the sub-categories without the description of the categorie.

Is it a plugin to add ? How can I do ?

I wish to add anything : into the link details>Required parameters : with VM 2.0.0RC3 there is a second line after Select a category : COM_VIRTUEMART_CATEGORY_FIELD_SELECT_LAYOUT.
It isn't there into the VM 2.0.26

Thanks a lot and sorry for my bad english