Small Objects: Inches
The distance is shown on the bottom of the screen and at the bottom of the command history.
Select all the lines and hit enter to create a group
Select the group you made. Array 6 in X direction and 6 in Y direction.
Select the bottom left corner of the group
Move the cursor to the top of the group and let the cursor snap. Then move the cursor over to the right click.
Before hitting done edit the X direction to be the distance you measured earlier.
or (Command + Shift + 5) for whole screen
Follow these videos to learn the basic commands of Rhino
When watching the videos try this method.
Watch
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Try
Rhino Basics
2. Polyline (multiple straight lines)
3. Curves (lines with anchors that curve)
4. Join (connecting objects and lines)
5. Trim and Split (cutting lines and breaking them apart)
5. Rotate (rotating objects on an axis)
6. Array (duplicating an object on a grid)