Redmine

Hi everybody,

I am installing a Redmine app for the needs of my company and because it's the first time i'm using RubyOR/Redmine, I have some questions about form customization.

I will need two types of custom fields in my form:

1# A <select> input field where options are listed from an other database than the redmine's one.

2# And when a value is selected in that field , there are some other fields witch auto-complete themselves ( so they are also connected to that extra database )

So with the first field we chose what we want by clicking on a data name for example but in fact we select the data id. And when we did it, the id is used in some other fields to auto-complete them.

Example:
We have the list name field, the size field and the date field.
For each names, the size and the date are different.
We select a name in the list and the two other fields will be automatically completed with the correct size and date corresponding to the name chosen.

I didn't found anything on how i could make it so is it possible ?
And if yes where can i find specific informations about it ?

Best Regards

FT