Selecting

Selection in Pose Mode is very similar to the one in Edit Mode, with a few deviations: You can only select whole bones in Pose Mode, not roots/tips...

Flip Active

Reference

Mode

Edit Mode

Menu

Select ‣ Flip Active

Hotkey

Shift-Ctrl-M

Flip the selection from one side to another.

Constraint Target

Todo.

Linked

Reference

Mode

Edit Mode

Menu

Select ‣ Linked

Hotkey

L

Selects all the bones in the chain which the active (last selected) bone belongs to.

All Forks

Selects all bones connected to the active bone even if the branch off from the current bone.

Linked bones selection.

A single selected bone.

Its whole chain selected with Linked.

Select More/Less

Reference

Mode

Edit Mode

Menu

Select ‣ Select More/Less

Parent [, Child ]

You can deselect the active bone and select its immediate parent or one of its children.

Extend Parent Shift-[, Extend Child Shift-]

Similar to Parent/Child but it keeps the active bone in the selection.

Grouped

Reference

Mode

Pose Mode

Menu

Select ‣ Grouped

Hotkey

Shift-G

You can select bones based on their group and/or layer, through the Select Grouped pop-up menu Shift-G:

Layer

To select all bones belonging to the same layer(s) as the selected ones, use the In Same Layer entry Shift-G 1.

Group

To select all bones belonging to the same group(s) as the selected ones, use the In Same Group entry Shift-G 2.

Keying Set

ToDo.

Select Pattern

Reference

Mode

Object Mode

Menu

Select ‣ Select Pattern...

Selects all bones whose name matches a given pattern. Supported wild-cards: * matches everything, ? matches any single character, [abc] matches characters in "abc", and [!abc] match any character not in "abc". As an example *house* matches any name that contains "house", while floor* matches any name starting with "floor".

Case Sensitive

The matching can be chosen to be case sensitive or not.

Extend

When Extend checkbox is checked the selection is extended instead of generating a new one.