Then it is easier. Leave off the #waitfor at the end and just let it loop through the images for #sets loops.

#sets 4 ; repeat the entire plan 4 times
#interval 120
#filter V
MP 2014 GG49
MP 1999 SH10
MP 2008 EZ5
MP 2006 SX217

This will just do the targets in rotation. If your exposure is 60, the spacing will be around 5 min.