Insert 2 characteristic name filters

[[Ju...]]

Does anyone know how to have two filters in the protocol page structure at the same time? My cursor in the above picture shows that there is one, but I cannot add another. I have position characteristics in my program using both LMC and MMC. In the above example the characteristic name {^((?!\.\(L\)).)*$} filters out the RFS result for the LMC position characteristic, but it does not get it to filter out the RFS from the LMC and MMC position characteristics at the same time. I've inputting several different things in the NAME field (see  top left of picture) such things like this... {^((?!\.\(L\)).)*$} & {^((?!\.\(M\)).)*$} but that does not work. Individually they work just fine, but I cannot get both to work at the same time.