There are three different page types that can by displayed in the Trade Grid:
User can create custom pages to group different types of trading symbols (e.g. different pages for different markets, symbol types or portfolios). There can be unlimited number of custom pages. Each custom page has it's own name (e.g. "US Options").
Example. "US Stocks" and "My Portfolio 1" pages.
See also: Trading using Trade Grid, Custom Page Columns, Adding Trade Grid Page, Removing Trade Grid Page, Reordering Trade Grid Pages, Reordering Symbols in Trade Grid, Removing Symbols from Trade Grid.
On the portfolio page all held positions are displayed. Portfolio page can't be deleted.
Example. Portfolio page.
On the Pending Orders page all working orders are displayed. Pending Orders page can't be deleted.
Example. Pending Orders page.