leIsLayerSelectable

leIsLayerSelectable(
l_layerPurposePair
[ d_techFileId ]
) 
=> t / nil

Checks whether the layer l_layerPurposePair is selectable.

l_layerPurposePair	Layer-purpose pair to check for selectability.
d_techFileId	The database ID of the technology file containing the layer-purpose pair.

`t`	The layer l_layerPurposePair is selectable.
`nil`	The layer l_layerPurposePair is not selectable.

Returns t if layer-purpose pair poly1 drawing is selectable.

leIsLayerSelectable( list("poly1" "drawing") )