Start Ooo

1) File -> New -> Drawing
2) Left mouse click on layer "Dimension Lines"
3) Right mouse click on Layer "Dimension Lines"
4) Choose "Insert layer ..."
5) Click "Ok" button
6) Left mouse click on layer "Layer 4"
7) Right mouse click on Layer "Layer 4"
8) Choose "Insert layer ..."
9) Uncheck "visible" option
10) Click "Ok" button
11) Left mouse click on layer "Layer 5"
12) Right mouse click on Layer "Layer 5"
13) Choose "Insert layer ..."
14) Click "Ok" button
15) Now you have 3 extra layers and layer 5 is invisible (shown in blue)
16) Left mouse click on layer "Layer 4"
17) Right mouse click on Layer "Layer 4"
18) Choose "Delete layer ..."
19) Click "Yes" button
20) Now you have anly 2 extra layers and layer 5 is still invisible (shown in blue)
21) Save drawing file
22) Close Ooo
23) open saved file
24) Left mouse click on layer "Layer 5"
17) Right mouse click on Layer "Layer 5"
18) Choose "Modify layer ..."
19) Notice this layer is "visible" and should be invisible
20) Click on "cancel" button
21) Left mouse click on layer "Layer 6"
22) Right mouse click on Layer "Layer 6"
23) Choose "Modify layer ..."
24) Notice this layer is invisible and should be visible