How can I create items of a Tk pop-up menu conditionally, for example with a switch 0/1 for the first command? (Possibly still using the same way to construct the -menuitems array (since I ve got increadibly many of such menus). This is how I construct my menu:

$menu = $mw->Menu(-tearoff=>0, -menuitems=>[
    [command=>$MESS_0= -command=>[\&DialogMove, $obj,]],
    '',
    [command=>$MESS_1, -command=>[sub {MoveColumn('right')}, $obj,]],
    [command=>$MESS_2, -command=>[sub {MoveColumn('left')}, $obj,]],
    '',
    [command=>$MESS_3, -command=>[sub {HideColumn()}, $obj,]],
    [command=>$MESS_4, -command=>[sub {
        if ($ContentColumn11GLOBAL eq 11){$ContentColumn11GLOBAL=0}
        else {$ContentColumn11GLOBAL=11}
        SetViewFromSearchFrame11($ContentColumn11GLOBAL);
    }, $obj,]],
    [command=>$MESS_5, -command=>[sub {
        if ($ContentColumn12GLOBAL eq 12){$ContentColumn12GLOBAL=0}
        else {$ContentColumn12GLOBAL=12}
        SetViewFromSearchFrame12($ContentColumn12GLOBAL);
    }, $obj,]],
]); 
$menu->configure(-postcommand => sub {
   redefine_labels();
   $menu->entryconfigure(2, -label => $MESS_1);
   $menu->entryconfigure(3, -label => $MESS_2);
   $menu->entryconfigure(5, -label => $MESS_3);
   $menu->entryconfigure(6, -label => $MESS_4);
   $menu->entryconfigure(7, -label => $MESS_5);
});

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In reply to Tk create menu item dynamically by IB2017

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