by niewinny·Workflow
Images © niewinny. Used for product review; image policy.
Lost Selection stands out in the blender_extensions library for bundling a compact set of selection operators across both Object and Edit modes in a small Python add-on.
Lost Selection is an add-on for Blender that extends the program's built-in selection with a set of extra operators for Object and Edit modes. It gives Blender artists more ways to build a selection based on properties of the active object or mesh element.
In Object mode, it can select objects that share the active object's display type, similar materials, similar material viewport display colors, identical rotation values, or the same modifiers. Options include Extend to add to the current selection, Same Type, Match All for materials, a color Tolerance from exact to any, Match Any, and an interactive list for choosing which modifier types to match.
In Edit mode, it selects connected edges and faces by crease, sharp marking, bevel weight and UV seam, each with comparison modes such as Equal, Greater or Less. A Length operator selects connected edges within Min and Max thresholds in edge mode only. Lost Selection is compatible with Blender 4.2 LTS and newer and is released under the GNU General Public License v3.0 or later.
Lost Selection is best for blender artists who want additional ways to select objects and mesh elements beyond Blender's default selection tools.
Lost Selection is completely free to download and use.
Lost Selection is compatible with Blender 4.2 LTS and newer, so it fits current long-term-support builds and later releases. It adds selection operators for both Object and Edit modes, covering matches by display type, material, color, rotation and modifiers, plus connected edge and face selection by crease, sharp marking, bevel weight and UV seam. The add-on is written in Python and installs through Blender's extensions system by drag and drop or from disk. For the exact supported range and any changes, check the developer's page on GitHub.
Lost Selection version 0.2.0 adds two new selection operators, similar_color and similar_material, expanding the ways you can match objects to the active one. The color operator selects objects with similar material viewport display colors, using a Tolerance value where 0 means exact and 1 means any color, plus a Match Any option. The material operator selects objects with similar materials and offers a Match All option to require every material rather than any. These join the existing tools for display type, rotation, modifiers and edit-mode edge and face selection.
Lost Selection handles color matching through its Color operator, which selects objects that share similar material viewport display colors with the active object. A Tolerance setting controls how close the match must be, where 0 requires an exact color and 1 accepts any color. A Match Any option lets it match when any material has a similar color, and an Extend option adds results to the current selection instead of replacing it. This gives several ways to group objects by their material display color.
Lost Selection includes a Length operator that selects connected edges based on length thresholds, and it works in edge mode only. You set a Min Length and a Max Length to define the range, and a value of 0 tells the operator to use the currently selected edge as the reference instead. This sits alongside the other edit-mode operators that select connected edges and faces by crease, sharp marking, bevel weight and UV seam values, each with its own comparison modes.
Lost Selection is listed as free here in the catalog, and it is distributed under the GNU General Public License v3.0 or later. That license covers how you can use, modify and redistribute the add-on. For current licensing terms, the source code and any updates, visit the developer's page on GitHub. The extension also notes that it does not require special permissions, so it runs within Blender's standard extension setup without extra access requests.
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