You can add another filter which lets you filter the DB on the codec type. Lossy / Lossless is an interesting filter to have.
To do this:
1. Create a new filter in your Column UI layout. Position it where you like. Now
2. Go to the Filter settings
3. Add a new filter rule according to the screenshot below. You can name it whatever you like though.
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Now will you have a filter with 'Lossy' and 'Lossless'
If you rather have a list where you choose from MP2/MP3/ALAC/FLAC use %codec% in the field settings of the specific filter.Also you can sort the results more logically by filling %album artist%|%album%|%tracknumber% into the Sort incoming files by field
If there is interest i will post more tips in the future