Problem: You have manually modified the layout of the loops on your drawing, and you need to modify the homerun or add some additional devices to the circuit. When you run the Draw Homeruns and Loops command, all your modifications are lost.
Solution: Instead of using the Draw Homerun and Loops command, use one of the more specialized commands we have available. They are all available in the DM Electrical->Circuiting and Homeruns section of the ribbon and pulldown menu.
Draw Homerun Only redraws the homerun without affecting the loops. You can use it to redraw the homerun on the device where it is currently located or to move the homerun to a new device.
Loop Devices Manually adds loops to devices that you added to the circuit. If you add a single device, manually inserting the loop can be easier than redrawing them and having to adjust everything again.
Modify Circuit Label can be used to remove the circuit label if you manually add a loop to a device.
Draw Tick Marks redraws all of the tick marks on the loops when you make changes. It will adjust the tick marks to account for loops you removed and added.