Hello Paul; what I can say right now is probably what you already know is that since PSR-S970 Yamaha has its Yamaha Expansion Manager software for computers which makes it possible to install several packages or just some parts of any package, but it means that you have to create a single package of what you want with this software, then you have one file which you can install on the PSR and which will replace all the expansions installed earlier. If I’m not mistaken (and I may), you need to create a single file of all expansions you want, this file should be .PPI , then you can install it.