type:
constant
name:
ATTRIBUTEVALUE_REORDER_LIMIT
purpose:
disallow ordering the attribute values where there are more than this amount
allowed:
number
default:
100
category:
segmentation

See also https://mantis.phplist.org/view.php?id=17040

When the amount of values for an attribute (select, radiobutton, etc) is more than this value, you will not be able to edit the order any longer.