First look at the notes in the installation instructions: http://wordpress.org/extend/plugins/multi-column-tag-map/installation/ under “Additional Options”
If you wish to make PHP changes, make a folder named “multi-column-tag-map” in your theme’s directory. Move a copy of the plugin’s “mctagmap_functions.php” into that folder. There you can make style changes that will not be overwritten when you update the mctagmap plugin.
In that new file, try this, about line 214 you’ll find:
$groups[$first_letter][] = $tag;
ksort($groups);
replace that with this:
if($show_pages != "yes"){
if($tag->count >= 2){
$groups[$first_letter][] = $tag;
ksort($groups);
}
} else {
$groups[$first_letter][] = $tag;
ksort($groups);
}
Notice this if($tag->count >= 2){ you will want to change that to what ever limit you want. The above will show only those with 2+ results. You mention 10, so you’ll want to use >=10
See if that works for you.
