InfoLine provides valuable information. Firstly, as you already know - it represents the midpoint of each Order Block or Breaker Block. When using it in two timeframes, and if there is a match between a zone from HTF and a zone from CTF -> InfoLine is colored with the HTF color (blue for Bullish or orange for Bearish).
If you have a Bullish zone on CTF and a Bullish zone on HTF - InfoLine will be blue (a great signal for a Long entry)
If you have a Bullish zone on CTF and a Bearish zone on HTF - InfoLine will be orange (it makes sense to be cautious in such situations - the smaller timeframe is bullish, but you are in a bearish zone on the higher timeframe).
If you have a Bearish zone on CTF and a Bearish zone on HTF - InfoLine will be orange (indicating a great Short opportunity with high probability)
If there is a Bearish zone on CTF and a Bullish zone on HTF - InfoLine will be blue. Here, again, you need to be very careful - there is a clear Short signal on CTF, but you are also in a bullish zone on HTF…
Bonus: For your convenience, when there is a match between zones in CTF and HTF, InfoLine displays the higher timeframe in parentheses.