How to open the "Params Chlidren Frames ..."-Window?

i am very new to synfig i was trying some things and i close the Params-Window after i close and reopen synfig the params window was not shown and i cant find how to open it again.

I hope you have understand my Question!

Sorry about my terrible english!

bye bye

P.S. I using a MacBook Air with Snow Leopard [Mac OS X 10.6.8 (10K549)]

Please can you tell us your Synfig version and how did you installed on Mac?