I use the image sequence option in Poser and like it for the same reasons you give too.  I have VUE Easel.  Is this available in VUE Easel or only Infinite?  I can't seem to find which version of VUE allows this. tks!

Windows 10 - Poser Pro 2012 - 64Bit - 24GB RAM - 4 x 3.40 GHZ processor