This is a fork version of nds-bootstrap where it have been included a swap screen option through key combination in order to enjoy NDS titles in GBMacros made with a DSi(XL)/3DS or consoles with one screen damaged. To use it follow those instructions:

• Download one of the two versions available in release section, unzip, and copy it to _nds folder of TwilighMenu++
• In your console, press Y in a NDS title and select nds-bootstrap = nightly
• Start your game and use key combination whenever you want

Notice: Unfortunately, some games don't allow forced screen switching due to constantly setting the main screen.