You can model enum in Astah – available in Astah Professional edition only.
How to model enum in Astah
1. Select the root package which is the project name in the Structure tree, and then go to the property view (the left bottom pane) which has various options you can set to this file. Open [Project Setting] tab and check the modeling language(s) you’d like to model with.

2. Select a Class in the Structure Tree or directly on the diagram, then go to its Property view, open [Language] tab and then tick <<enum>> to enable you to model an Enum.

Same as Attributes, select an Attribute and then go to [Language] tab in its property view and tick <<enum>>.

Hope this helps.
You can use Astah Professional for 50 days for free if you’d like to try it out from here:
Download Astah 50-day free trial
Cheers,
SJ



















