Hi Bob,

Yes.

I'm sure that answers your question, but here's an example of a plan I have run in the past:
Code:
#startsetnum 1 ; Persistent set numbering added by ACP
;
; --------------------------------------------
; This plan was generated by ACP Planner 4.2.6
; --------------------------------------------
;
; For:           Dick
; Location:      Observatory
; Coords:        Lat = 38 58' 06" Lon = -77 04' 05"
; Targets:       3
; NOTE:          Local times are for observatory (UTC - 5)
; Start Imaging: 25-Dec-2011 20:00:00  (local)
; Total Time:    09:10:31
; Autofocus each target.
;
; ---------------------------------------------
;
#duskflats    ; Acquire flat fields at dusk
;
;
; === Target EY Gem ===
;
#waituntil 1, 26-Dec-2011 01:00:00    ; UTC (20:00:00 local)
#autofocus
#calibrate
#repeat 1
#count 300
#filter V
#interval 48
#binning 1
................... [more]
#shutdown
or you could embellish the "duskflats" part like this:
Code:
#duskflats ~AnyDay-flats.txt  ; Acquire flat fields at dusk
;
; now do dark and biases
;
#count 7,7,7
#interval 30,30,30
#binning 1,2,3
#dark

#count 31,31,31
#binning 1,2,3
#bias
;
; === Target EY Gem ===
;
#waituntil 1, 26-Dec-2011 01:00:00    ; UTC (20:00:00 local)
#autofocus
------ etc...
where ~AnyDay-flats.txt might look like this:
Code:
7,Ha,1
7,Ha,2
7,Ha,3
7,V,1
7,R,1
7,I,1
7,Clear,1
7,V,2
7,R,2
7,I,2
7,V,3
7,R,3
7,I,3
7,Clear,2
7,Clear,3