[shovel]

Actually it's just a style change away really. Find the template called "editor_clientscript" (if you can't find it, do a template look-up using keyword "sizeoptions"). Within that template you'll notice you have the following...

PHP Code:

var sizeoptions = new Array($vBeditJs[size_options_array]); 


What you can replace it with is the following. Obviously you'd just put the forum id that's unrestricted rather than what I have. It should look like this...

PHP Code:

<if condition="$forumid == 4"> <!-- unrestricted forum id -->
var sizeoptions = new Array(1,2,3,4,5,6,7); <!-- unrestricted sizes -->
<else />
var sizeoptions = new Array($vBeditJs[size_options_array]); <!-- default sizes -->
</if>