1. Fixed problem when import sag by layer, some element won’t be cut.
2. Fixed problem that could not find some machine when exporting.
3. Fixed object panel blocking problems.
1 . Added object panel for group, multi select.
2. Added top menu click feedback.
3. Added element sensor area.
4. Added titlebar > Edit > Path > Decompose Discrete Path: Decompose path to multi pathes.