if i put a multichannel audio sequence in the source monitor i can't see all of the audio tracks

i usually use avid media composer for the editing but i want to try working with premiere pro. I work with the television so my clips are .mxf files and they have multiple audio tracks. At the end of the shooting i create a sequence with all of the clips that i shoot and i put this sequence in the source monitor so i can choose from this panel what i need and put it in the timeline where i edit my final product. When i am in playback in the source monitor i need to see all of the audio tracks of my sequence so i can change the levels of the audio tracks, i can play in solo just one track etc. With premiere pro 2017 this was possible and i cannot understand why i cannot do this anymore in the new versions. The problem is very specific with just the sequences (in playback in the source monitor and not in the program monitor) because if i put just a single multichannel audio clip in the source monitor i can see all of the audio tracks. But for my workflow this is a problem because i have a lot of clips and it would be too long to put every time a new clip in the source monitor one by one. This is not just a problem of mine because i have a lot of videomaker television colleagues that don't use premiere pro for this reason. Thank you for your time i hope this will be fixed in the next update.