relation field question

hi,
we need to make this kind of (maybe complex) content structure:
item types
- article
- article_user

every article_user must be related to one or more articles by a specific relation: article_user can be "trainer" or "participant". so, one article_user could be "trainer" in two articles, and "participant" in other articles.
we tried to create this kind of structure, using "relation/relation inverse" logic implemented in flexicontent:

- article
"trainer" relation field
"participant" relation field
- article_user
"trainer_in" relation inverse field linked to article field "trainer"
"participant_in" relation inverse field linked to article field "participant"

trying this solution, in the administrator article edit page i find only the first relation "trainer". I cannot see the other relation field group.
so here are my questions:
1. maybe this kind of field is limited to one only?
2. is this the right solution for my needs?
3. is flexicontent suited to my purposes?
thanks in advance.

Hello,

1. you can create such relations with relation field

2. A relation field will appear in "Content Item" if you assign in the Content Type

so in field configuration of you related items go to top right and select the content types in which you want to appear.

About FLEXIcontent suiting to your needs , take some time to explore it and test, also read popup descriptions of parameters, and if get stuck somewhere look into our and if not there post a question here

Regards