I am trying to build a log viewer that will filter the results based on 
check boxes selected and a selection in a drop-down box.   I am using the 
MorphicToolBuilder to do so, but I am having trouble figuring this out.

CheckBoxes:  I see ToolBuilder>>#buildPluggableCheckBox:, but it defers to 
#buildPluggableButton:.   I didn't see a PluggableCheckBoxMorph or anything. 
Is there a way to configure a PluggableButtonMorphPlus to be a CheckBox?

DropDownMenuBox:  I didn't see anything about this.  Is there a way to do 
thid?

TIA,
Rob