First, let me apologize for the delayed reply.
We have figured out the problem of renaming the Model entities with the DSW. Currently the DSW checks the rlinq entity name with the actual database table name and if they are not compatible, the wizard will not show it in the grid. You can only use the plural suffix along with the table name like (s, es, ies). In this case, the DSW will easily detect them.
We will ship the fix for this bug with the next release, so you should not experience problem of this nature again.
Sorry for the inconvenience this has caused you.
the Telerik team
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