How do I manually override average purchase price?

[morphy101]

Hello. I was holding VTIQ shares before the merger. Post-merger, the ticker symbol has been changed to NKLA.

It appears that IG handled this by treating it as a new stock, delisting the old one and allocating me the same number of shares under the new ticker symbol.

Now my positions list is showing the average purchase price as 0.

Annoyingly this skews my overall profit, as the profit is now equal to the share price multiplied by my holding.

I understand that in the old share dealing platform one could go in and manually edit the purchase price.

I cannot seem to figure out how to open the old platform any more. Is there any way to do this in the new platform?

 

Thanks.