concatenation of select field

Hello,
I don't find any tutorial about what i would like.
Perhaps can you help me ...
For example,
I've got two "multiple select fields" in item forms (backend)
On type 1 : field1 (value : japan, china, ...)
On type 2 : field2 (value :america, mexico, ...)

On advanced search i would like to have a field which concatenate field1 and field2
example
field 'country' (value:japan, china, america, mexico, ...)
Is it possible with flexicontent ?
Thanks for your help.

Hello

you mean as
- a filter or
- for text searching ??
- or for the purpose of diplaying it in the item listing ??

euh ????
In advanced search, i would have just one field with all the value ...
i gonna make something in my test site to show you.

Hello

there are 2 search indexes which FLEXIcontent search view can use

-- BASIC search index
concatenates ALL text-searchable fields of each item, INTO 1 record
NOTE: all "category-like" listings use this index for TEXT search


-- ADVANCED search index
it adds 1 record per field value

NOTE: is optionally used by FLEXIcontent search index for TEXT searching in some "selected" fields

Gloups ! too hard for my english ...
On frontend, i've got two filters in advanced search (asia country and america); I put them just to explain.
besace.info/joomla/index.php/site_content/search
I would like to have this two filters only in item forms (backend)
On frontend, i would like to have only one filter (country) which concatenate asia and america. I don't want to have "country" on item forms (backend)
Thanks for your help and sorry for my poor brain

Hello

i understand you cannot display 2 filters as 1 filters,

1. only way would be create a new TYPE of FLEXIcontent field, that will use data from 2 fields

2. and change functions of the field
but you are not a developer, right ?