#99 filter out unnecessary rows?

Hi to all. Some schools like to group same info about different classes, in my case, classes 8a and 8c (see attachment). In the app the information is "exploded" in more rows, also the ones I'm not interested in (e.g. class 8a). This scenario get worse if the "aliased" classes are more than two... I would like to see only the rows about class 8c (see attachment), the one I'm actually filtering in the app settings. What do you think? Thanks.