How do I jump to a tag in a new split window showing all matching tags?

Explanation

<C-w>g] splits the window and then runs :tselect for the identifier under the cursor, displaying a numbered list of all matching tags so you can pick the exact definition you want. This combines the convenience of a split with the disambiguation power of :tselect, making it invaluable in large codebases where a function name appears in multiple files or implementations.

How it works

• <C-w>g] = open a new horizontal split, then run :tselect {word-under-cursor}
• :tselect lists all matching tags with their file paths and kinds (function, variable, class, etc.)
• Type the number of the match to jump to it, or <CR> to cancel
• The tag stack is updated, so <C-t> returns you to the originating buffer

Compare to related commands:

Example

With cursor on parseConfig:

1: kind:f file:src/config.c         static int parseConfig(const char *)
2: kind:f file:tests/config_test.c  static int parseConfig(const char *)
Type number and <Enter> (empty cancels):

Type 1 or 2 to jump to the desired definition in the split.

Tips

• Use <C-t> after jumping to return to where you came from
• Combine with ctags or a language server that generates tags for best results
• :tselect {name} can be called directly from the command line to browse all tags matching a pattern