I read this link https://tiddlywiki.com/static/How%20to%20create%20keyboard%20shortcuts.html
And make a shortcut myself, second one was copied from the site, it worked when I typing in the input widget, but the first one not worked, I don’t know why seems no difference.
! not worked
<$keyboard key="alt-shift-k" actions='<$action-sendmessage $message="tm-edit-text-operation" $param="wrap-selection" prefix="<<ML " suffix=">>"/>'>
<$edit-text tag="input" tiddler="my-tiddler"/>
</$keyboard>
! worked
<$keyboard key="alt-m" actions='<$action-setfield $tiddler="my-tiddler" $field="my-field" $value="my-value"/>'>
<$edit-text tag="input" tiddler="my-tiddler"/>
</$keyboard>
If I change <$edit-text tag="input" tiddler="my-tiddler"/>
to <$edit-text tag="textarea" tiddler="my-tiddler"/>
is not worked too.