Select an existing grid to attach the grid line to.
Click thesymbol between two existing grid lines or outside the grid.
Tekla Structures creates the grid line and gives it a label using the labels of the adjacent grid lines. For example, a new grid line between the grid lines 1 and 2 receives the label 12*.
Add a grid line between two points
You can add new grid lines between two picked points.
On the Edit tab, click Grid > Add grid line.
Select an existing grid to attach the grid line to.