Your datasources/scripts/users etc are all stored in the H2 database (or mysql if you're using that).
The physical file location depends on where your mango install is.
it will be [Mango DIR]\databases
The database itself is the mah2.h2.db file.
If you're after files you've uploaded, they will be in [Mango DIR]\filestore

Hope that is what you're looking for

Fox

For a start, your for loop needs to have
var i=0; i<=421.value; i++
Secondly, to set a value as can be read under "Mango JavaScript" you use the set function:

if ( p420.value == true ) { for (var i=0; i<=421.value; i++) { //1st case p422.set( p422.value + 1); //current value + 1*value of slider + 1 } } else //else if not needed since you're either true or not true (==false) { p422.set( 0 ); //Set to 0 }

Try rereading the docs provided by Joel to get a better grasp of what I have written and how it relates to the documentation provided.

Fox

Welcome to the forum Claire, first up, I'd advise having a closer look at the examples page at the bottom of the menu. It shows how to utilise various components in the system and how they all work together.
Secondly, given you're trying to accomplish something, copy the markup from the dashboard editor to show us what you have done so far and what you're hoping to achieve.
be sure to paste the code between the code (</> button) tags.
Thirdly, turn on the API menu under administration -> edit menu then save at the top, this explains how each individual item in the mango dashboard functions.
Finally, the dashboard utilises AngularJS. So it would be good familiarise yourself with the formatting used to display and manipulate the view you are building.

If you have any further questions, feel free to ask here. I also recommend searching the forums, there are plenty of examples around of what others have done that you may be able to build from.

Fox