MT4: market sessions time-shift

hi all,

I use MT4. I have a market session marker so I can identify Markets Open and Close.
All good so far.

Now, since the clocks have changed, I have to adjust my settings.
However, this means all my past charts are now askew.
I cant look back visually and get the "true" open/close.

Does anyone have, or know of, a market-sessions overlay that allows date-ranges so I can match my ranges to the true times?

thanks

examples:
"before": using BST
"after": using GMT.
screws up my range-break visual.

would be good to be able to enter a date-range so I keep the range-breaks correct.

let me know if you get help ...looks a good tool !