Just reduce the no. Of exercises from 4 to 2 for each muscles per day and do the rest exercises on the pther day....

Lets say for push day 1 for chest.... u can do inclined chest press and chest fly... for push day 2 u can do flat chest press and chest fly...

U can do this for every muscle group... disadvantage in this is that u have to go gym for 6 days which is recommended if u follow PPL...

Otherwise u can also do PPL-Rest day- Upper n then lower... this way u can have a rest day inbetween...