MirrorPro is a Blender add-on that allows you to add Mirror or Symmetrized objects with a single click on any axis direction, using an interactive Gizmo.

Work both from Edit and Object Mode

Multiple Objects.

While selecting multiple objects, it should have an active object as the target origin. The other selected objects will automatically be assigned a Mirror modifier and use the active object as their target origin.

Auto Bisect.

It has auto bisect enabled by default, but it can be bypassed by holding Shift while selecting the axis direction. Please note that the auto bisect feature only works on Mesh objects and is automatically disabled when selecting multiple objects.

Without Bisect (hold Shift);

With Bisect (default);

Auto Recenter Origin.

Hold Ctrl+(Select Axis) to recenter the origin.

Symmetrize Mode.

Instantly symmetrize geometry by automatically applying the Mirror modifiers.

Set Mirror Object Origin.

You can add or change the current object origin on objects that already have Mirror modifiers. If an object has multiple Mirror modifiers, a pop-up menu will be displayed to choose which modifiers will be affected.

Modifiers List.

As an additional feature, this add-on includes a Modifiers List feature, which is useful for efficiently managing and ordering objects that have multiple modifiers. This feature also supports multiple objects.

If you have any questions feel free to contact me.

Another useful add-ons: Quickmod [bundle] - A Quick Way To Add Modifiers (include this add-on).

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