Simplest solution:  * Make sure that you provide sufficient spacing between the panels for the V-Cut lines: otherwise they will rip the edges of the tracks and pads: [https://jlcpcb.com/capabilities/Capabilities](https://jlcpcb.com/capabilities/Capabilities) > Board Outlines > Trace to V-cut line

I'm lost here... Traced the board outline but I can't find where is the option to convert it to V-cut line. Tried right mouse button menu over the track and track properties. Right mouse button menu: 

@Madbyte, "...can't find where is the option to convert it to V-cut line." There is no option to "convert" a line drawn in the Board Outline Layer to  V-Cut line. A line drawn in the Board Outline Layer, inside those defining the actual Board Outline are defined to be V-Cut lines. It really is as simple as the image I showed you. Draw the Board Outline in the Board Outline Layer then draw your desired V-Cut line in the Board Outline Layer.

Ok, got it. Thanks for the support, but there are some things that are confusing, so I thought I was doing something wrong. 2D model only recognize one PCB:  3D model does show both PCB:  Fabrication Option only shows one PCB:  <br> But final order seems ok 

@Madbyte, Not surprised you're confused. Me too. Here's a Bug Report... [https://easyeda.com/forum/topic/PCB-with-V-Cut-displayed-incorrectly-in-2D-and-Fabrication-Option-views-581975a95c334757af355efba42b6d04](https://easyeda.com/forum/topic/PCB-with-V-Cut-displayed-incorrectly-in-2D-and-Fabrication-Option-views-581975a95c334757af355efba42b6d04)<br> <br> :)

Excellent! Thanks!