[OBD U6] Place weldneck flange on pipe the right way

Hi,

What's the right way to place a weld neck flange on pipe in U6? Below is what I get when trying to place 50 flange on 50 pipe in AU dataset. I can place the flange first, then connect the pipe to it. But it would be much more efficient if flanges can be placed on pipe ends, correctly. 

Best regards,

Tuan Le