Of course - as always - I see that your 100 are better than my 100 - but anyway - the first time i did this was before any of the intelli-space options were there, but I do remember that since the photos were from a one to two year span, I just created an album, went through the folders and added to the album until I had 100 in the album, then opened the album added all to the queue. I think I had to adjust the crops on a few, but that was not a major issue.
I did it the easy way. I placed 13 x 19 as my paper size, and then went to CUSTOM. In there I used NUMBER OF PRINTS PER PAGE, and put 10 for columns and 10 for rows. That was it. Crop scissor on, added 100 images.
Fred