Allow users to set own character limits for different fields in storefeeder e.g. set product name to X characters limit

It would be useful if we could set our own character limits for some fields on storefeeder. Limiting the product name to X characters would probably be useful for some. If it was limited to 80 characters for example then the title would be compatible with most marketplaces without modification. This would be particularly useful for advertising on our own website e.g. Magento. Setting a limit ensures the most useful keyword filled title is used. A more specific example is google meta data in the magento integration. Google limit meta titles to 55 characters, so it woule be useful to limit that field in storefeeder to 55 characters. Thanks Kieran