Increase the number of connections

Since the main window is a browser window, the number of total connections (images, XHR requests) that the window can keep open at the same time is severely limited (to 3 in Trident, I believe). Is there any way I can increase this limit, of number of connections open to the PHP backe d of the local server, via an HEScript variable or command?

ExeOutput for PHP version 1.6, Trident engine.

No, there is no way to change that.

Try using Chromium engine instead, it has a limit of 6 simultaneous connections to a single domain as far as I know.