3Ds MAX Layer Remover

You might encounter a situation where you want to remove an empty layer that you created earlier, but the delete option is grayed out in the layer manager, and you are unable to remove that layer. Remember that 3Ds Max never allows you to delete a layer while it contains nodes or the default layer called “0”. In some rare situations, even an empty layer that you created and then finished with may not be deletable in 3Ds Max. This happens because of some unclassified nodes that come with your imported models from other programs. These nodes are not visible in the viewport or the layer manager. The only way to eliminate them is to select those nodes using MaxScript and delete them manually, so the layer’s delete option becomes available again. in that situation this scrip come handy.

for more information visit this link
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Installation

1. Download the zip file and pay as much as you want :).
2. unzip the file and drag the .mcr file to your 3Ds Max viewport.
3. go to “Customize” menu and press “Customize User Interface”.
4. in the toolbars tab in Category drop-down list Pick “Aslan”
5. drag and drop “Remove Undeletable Layer” to your toolbar
6. have fun.