[How to adjust chart after stock consolidation]

I have been following a company which recently consolidated its stocks by 15:1. The chart is now nonsensical. How do I adjust for the consolidation?

[History no longer visible on Dashboard page??]

Since my first trades on IG via the Dashboard the history tab has shown trades completed. It now presents as a blank page headed History. At the moment the first I know of trade completion is the appearance of the shares in my holdings followed eventually by email confirmation and then daily account summary.  I am unable to find a setting to reinstate the previous view. Can someone help me please?