Each strategy has its own all time p/l that is displayed in the same column at STRATEGIES grid view.
If you removed this column then you can add it by right clicking on column header, then click on "Column chooser" and in popup menu double click on columns that you wish to add/display.
No. I am on about the total of all your strategies. Where the number of strategies and total P/L of statergies in the top right corner, is there a way of showing the All time P/L. I am having to add the all time totals myself atm. Not a big problem if it's not avaialble.