Workaround for MT4 freeze with v60

Good morning!

I have found a workaround for anyone who wants to keep the Zig Zag Oscillator on their chart. Well, it works for me!!!

After trying different versions of the Zig Zag Oscillator without success at preventing MT4 from freezing, I used the attached script (place in the script folder) to update the history data, similar to Xard's earlier suggestion to update data manually using his XU-Basic template.
Drag and drop the script to any open chart and every symbol in Market Watch will refresh in every time frame. Note!!!! If you have many symbols visible in the Market Watch window, this refresh could take quite some time - Right click on symbols you don't use and select 'Hide'.
Unfortunately, this solution only worked for a few hours and I also noticed that a demo MT4 freezes far more frequently than a live chart from the same broker.

The workaround:
Open 2 charts both with the same symbol
Set the charts to M15 and H1 (or as preferred)
Apply the v60 template to both charts
Delete the Zig Zag Oscillator from the H1 chart
Delete Symbol Changer from the M15 chart
Attach the ChartSync indicator to the H1 chart, which now becomes the master symbol chart.

Only change symbols on the H1 chart and after a momentary delay, both charts should synchronise with the same symbol. If more than 2 charts are open, they will all synchronise to the master chart symbol.

Kev