Change the units in Canvas Attributes as shown below:
2) To generate the Pick and Place file be in the PCB editor window
go to Document >> Export Pick and Place file.
When you open the exported Pick and Place csv file, You will find the document opened as shown below:
Now you need to make changes by deleting columns which is not required by LionCircuits. The required document lis shown in the image below:
Kindly export the updated Pick and Place file and Email it to email@example.com after placing the assembly order.
Here is the step by step Order Guide