Reading Monster Stats into Sheet Provided with Plus Subscription

I am fairly new to actually doing more than using the maps for roll20. I just for the first time bought the plus subscription and love the lighting options. I figured that out on my own. I tired finding this question in the forums and read through quite a few on searches, but none seemed to answer what I was really after. Is there an easy way of importing monsters into the npc character sheets provided? Do I have to manually type in each monster stat into the DnD 5e NPC sheet and add all there attacks? Seems like there should be an easy way to read in stats that someone else has graciously provided.

Generally speaking, you have to type all this stuff in manually. One of the D&D sheets has an import function, i think, but switching between sheets is not really recommended - it can have unexpected consequences (.g. values being erased or overwritten when the sheets use the same names for different purposes). It also needs the data to be formatted in a specific way.