Another legend issue

[Modesto Vega]

According to https://sparxsystems.com/enterprise_architect_user_guide/16.1/modeling_fundamentals/add_a_legend.html, the following can be used in the Value option in combination with the Filter option.

n:y:x:z (matches on any number equal to one of the values); for example, 2:4:6:8 colors objects with the property having a value of 2, 4, 6 or 8

But it does only apply to numeric values, it does not work (or seem to work) with textual values. Since the string needs to be parsed, I really don't understand why somebody will introduce such a limitation.