Multi purpose Path Tool for Blender 3D 2.83+/2.9+ /3.#/4.#+

Multi purpose PathTool for Blender 2.80+

This add-on offers a tool for advanced path selection.
It allows you to select the exact path (consisting of edges or faces)
Add and adjust intermediate control points until you are satisfied.

E.g. use this tool to select edges, mark creases for UV-mapping or any other advanced path selection.

Mouse, shortcut keys:

LMB - Add control point
ctrl + LMB - Remove control point
LMB on path - Add control point on path
LMB drag - Move control point
RMB - Context menu
[Enter] or [Space] - Confirm & Apply
[Alt] - Reverse path direction
[ESC] - Cancel operation

Usage:

The tool can be found under the selections tool 'Path Tool', shortcut [w]
The first click creates the starting point, and keep clicking to add points.
Press [alt] to reverse the direction of the path.

Right clicking shows a context menu where you can determine what the path selection should do.

You have several options, use the path to:
- select, unselect or toggle the edge selection.
- mark, unmark or toggle the path as 'seam'.
- mark, unmark or toggle the path as 'sharp'.

The Close Path button will connect the start and endpoint of the path.

Switch direction reverses the path direction, shortcut [alt]
In edge mode the action will applied to all selected edges
In face mode it will apply to all boundary edges of the faces selected.

Use [space] or [Enter] to confirm & apply.

Source on Github: https://github.com/BlenderHQ/path_tool

Updates:

Version 4.0.0

• The addon release system has been updated.
• Added an option to display the path behind the object.
• Added cosmetic changes to the user interface.
• Added a new system for checking and installing updates.

Version 3.6.2

• Fixed an issue with flipped normals in the viewport.
• Updated the shader system to the new Blender development design standards (maintenance update).
• Fixed an issue with control point opacity in edge mode.
• Increased accuracy of depth and color to 32-bit float - this reduces polygon depth fighting in the viewport.
• Fixed different distance between "Select", "Seam", "Sharp" options in tool settings and radial menu.
• Brought back module reload support.
• Added localization support, with initial uk_UA translations. Users can create their own translations in other languages ​​using fields from this dictionary.
• Now, while working with paths, the addon's UI will become inactive, as access to it is not possible at this time and this should be reflected in the UI. This also applies to keymap preferences.

Version 3.4.1

• Added "Auto Tweak Options" preferences option. This used to be the operator's default behavior for ease of use, but is now optional and disabled by default. If no mesh element is initially selected, the selection option will be changed to "Extend". If all elements are selected, it will be changed to "Do nothing". The option is in the addon preferences under Behavior > Auto Tweak Options.
• Main operator has been fixed in a situation where you do undo and redo and then cancel the operator, after which start a new instance of the operator again
• Added a system of keyboard shortcuts that were previously hardcoded. All of them are available in user preferences. Here, Blender has limitations because it does not provide any possibility to create keymaps for modal operators through the Python API. Among the identified shortcomings (however, they were there before) - it is not possible to assign "Double Click" and "Click-and-Drag" actions to the keys.
• Standard settings that simplify navigation - "Auto Perspective" and "Zoom to Mouse Position" have been added to the behavior settings. This is useful for faster setup.

v 3.2

• Added support for work in all view-ports as well as in all open Blender windows - now there is no binding to a specific viewport in the specific window in which the work was started.
• Added support for anti-aliasing SSAA, FXAA, SMAA, with configurable options. They are performed sequentially - that is, you can enable only some of these methods for finer tuning on your hardware.
• Changes to the operation logic of operator properties:
• Added operator presets.
• The option to apply options to tool properties has been removed - now the tool properties and the properties of the current operator session are combined.
• Options in the pie menu reflect actions for the current path of the operator - it can be reversed, closed, etc. but operator options and access to addon preferences are in a separate submenu. An important change is that now it will not disappear after each tweak of the options.
• Added option from standard operator "Topology distance". It can be enabled for each individual path and enabled by default for all new ones in the operator / tool options.

v1.0.5 a
• UI fix: "Fill Gap" changed to "Close Path"

v1.0.9

• Added multi path support
• Fix to work with " Orbit Around Selection" global option
• Pie menu
• Fixed tool icon
• and much more under hood

v1.1.0

• bug fixes

v1.2.1

• Blender 2.93 fix