Local layouts

The Customization manual (section 5.2.1.1 for LyX 2.0.3) tells you how 
to use local layouts, but it doesn't tell you how to remove a local 
layout which, after testing, you decide is not what you want and the 
original layout should be reinstated. My instinct was to erase 
everything in the local layout window, press the Validate button and 
then the Apply button, but it had no effect.

The critical thing, to erase a local layout, is to leave the Format 35 
line but erase everything else, then press Validate and Apply. After 
that you can also delete the lonesome Format 35 line. I think there 
should be another line or two added to the section in the Customization 
manual explaining this, since not all one's local layout experiments are 
going to prove successful.

Andrew