I'v finaly found the solution by myself.
When you create the schema of your function for your menu, you have to define tag property:
%% Define the schema function for first menu item.
function schema = getItem1(callbackInfo)
schema = sl_action_schema;
schema.label = 'Item One';
schema.userdata = 'item one';
schema.tag = 'MyMenu:Item1'; % HERE
schema.callback = @myCallback1;
end
Then you can create a filter using the tag you gave:
cm.addCustomFilterFcn('MyMenu:Item1',@myFilter);
Finaly, you can create the function myFilter to manage the state enabled/disabled of your menu. As explain here:
