Hi Kathleen--
You can work around this using some ACL code. In your editinit.acl file, add the following:
require _findentdlg;
set entitylist="...";
_findentdlg::_updateEntityList(current_window(),current_doc());
Replace the "..." with a space delimited list of entity references. With a schema, you won't have named character entities, so you'll have to use numeric entities, for example if you want to include the copyright and trademark symbols, it would look like this:
set entitylist="© ™"
For some reason, just setting the entitylist option string won't update the droplist automatically, that's why you have to use the _findentdlg::_updateEntityList() function to do that.
--Clay