• Ctrl+H
• 标签：(?:<myTag>|\G).*?\K\bm_(?=Member\d+(?:(?!<myTag>).)*?<end>)
• 替换为：LEAVE EMPTY
  **TICK 匹配大小写 *
  ***滴答声 * 环绕 *
  ***SELECT * 正则表达式 *
  *未勾选. matches newline
• 更换所有
  说明：

(?:                 # non capture group
    <myTag>             # open tag
  |                   # OR
    \G                  # restart from last match position
)                   # end group
.*?                 # 0 or more any character, not greedy
\K                  # forget all we have seen until this position
\b                  # word boundary
m_                  # literally
(?=                 # positive lookahead, make sure we have, after:
    Member\d+           # Member and 1 or more digits
    (?:                 # non capture group
        (?!<myTag>)         # negative lookahead, make sure we haven't <myTag> after
        .                   # any character
    )*?                 # end group, may appear 0 or more times
    <end>           # end tag
)                   # end lookahead

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