Ah, ok ty for help. I thought that I have to put it in "Display condition"like i said put your code simply like this :
<xf:if is="$xf.visitor.isMemberOf(3)">
(Your widget code here )
</xf:if>
If I want to add there more roles, I just have to add
Code:
<xf:if is="$xf.visitor.isMemberOf(3, 2, 1,)">