Open the 2nd layout, then choose the event sheet of the 1st layout at the layout properties window to the left, under the "event sheet" tab. This way, you're using the same event sheet for both layouts
<img src="smileys/smiley1.gif" border="0" align="middle" />
<font color=blue>EDIT</font> also, i'd recommend that you create a separate layout for the sprites. name it "dumpster" or whatever you like, and never use that layout ingame.
that'll help you organise things and avoid unwanted sprites in playable layouts <img src="smileys/smiley17.gif" border="0" align="middle" />