FTL

//%1% : Master Key
// %2% : Slave Key
// %3% : Modifier
// %4% : SlavesToSend
<Template SendMasterAndSlave>
         <SendFocusWin>
                  <Key %1%>
         <Sendlabel %4%>
                  <Key %3% %2%>
<EndTemplate>

// %1% : master key
// %2% : slave key
// %3% : modifier
// %4% : Active window
// %5% : Slave Windows
<Template SendLeaderless>
        <If ActiveWinIs %4%>
            <ApplyTemplate SendMasterAndSlave "%1%" "%2%" "%3%" "%5%">
<EndTemplate>

// %1% : master-key
// %2% : slave-key
<Template FTL>
          <Hotkey ScrollLockOn %1%>
                   <ApplyTemplate SendLeaderless "%1%" "%2%" "rctrl rshift" Leader "w1,w2,w3,w4">
                   <ApplyTemplate SendLeaderless "%1%" "%2%" "rctrl ralt" Char1 "w0,w2,w3,w4">
                   <ApplyTemplate SendLeaderless "%1%" "%2%" "ralt rshift" Char2 "w0,w1,w3,w4">
                   <ApplyTemplate SendLeaderless "%1%" "%2%" "rctrl ralt rshift" Char3 "w0,w1,w2,w4">
                   <ApplyTemplate SendLeaderless "%1%" "%2%" "rctrl" Char4 "w0,w1,w2,w3">
<EndTemplate>

// follow
<ApplyTemplate FTL "f" "f">