Is there a way to mirror the 1/2 pattern on the block?
You can use the Mirror Objects by Axis tool. Pick up the tool & drag over everything except the points on the line that you want to use as the centre line, hit Enter and select the 1st point of the centre line, select Vertical or Horizontal (in your case it will be Vertical) and click on OK.
How to use this tool? I couldn’t make It work.
Instead of dragging, you can hold down the Ctrl key and click all the points that you would like to mirror. When you’re done, you can release the Ctrl key and press Enter. Click on the point from which you would like the mirror to start & select the Vertical or Horizontal. Click on OK.
For mirroring by axis - vertical or horizontal: select the Mirror by Axis tooL
The select the objects you want to mirror.
You can either select them one at a time or “rubberband” around the objects you wantto include:
The objects will be hilghted with the dashed line box:
Press Enter:
Now select a point that is NOT one of the point you selected to mirror:
The Mirror dialog pops up… select whether you want to Mirror Vertically or Horizonrally based on the Axis point… note how the tool shows you the selected points in your hilight color of choice:
Click OK.
The Mirror by Line operates in a similar fashion except you are going to select 2 points for the line that are NOT objects selected to mirror.
Again… follow the tooltip instructions in the status bar… they basically tell you how to use each tool: