This function lets you to align one or more entities with another entity. When aligning annotations, horizontal and vertical alignment lines appear. For dimensions, the alignment lines are parallel and normal to the dimension. For angular dimensions, the circumference is indicated.
To align an entity:
Either Click the
Add Alignment icon
on the Drafting Tools
toolbar or choose Tools / Add Alignment
from the main menu, or right-click in the graphic area and select Align from the popup menu.
Pick the entity to which other entities are to be aligned and exit.
Select the entity to be aligned just below the text area and drag it to the entity to which it is to be aligned. Horizontal and vertical constraint lines appear when the dragged entity is correctly aligned. In order to detach an aligned entity, drag it to a new location while holding down the ALT key.

Notes:
Alignment can only be performed with linear and angular dimensions, datum target, surface roughness, ID Num, and text.
Only entities which can be aligned appear active (selectable) when selecting the alignment function.
Alignment can be applied in the general edit mode or within a specific entity. However when applied within a specific entity, the alignment lines disappear when entering a new function.