Panel button open at startup?

FvwmButtons with a Panel command, the button is closed at startup. For example:

*BarButtons: (1x2, Panel(left, position module -10+2 top, steps 6, delay 10, indicator 30) \
	"FvwmDesker" 'Module FvwmPager FvwmDesker 0 3')

panel-close

How to keep it open at startup?

panel-open

FvwmDesker looks now much better on color Tint transparency than Pixmap, with less RAM. Not sure if Panel can be opened on startup.