You can control any type of imported OSG animation from Vizard. Only animations created with the OSG seguence helper store a mesh for each frame. See the following thread for some information on animation controls:
http://forum.worldviz.com/showthread.php?t=4419
Add the following lines to the example script in that thread to toggle the water UV animation:
Code:
#toggle between pause/play
water_animation = animations.getChild('water')
vizact.onkeydown('w',water_animation.setAnimationState,viz.TOGGLE)