well now I know how.
1. click the "crate nextensi list wizar".
2. in the step 1/4: get data from: select "record set". In record set name:click on "ad recorset". In the rs windows select the name, conection and table where the ads' information is stored. select the colums to display (I just need the ads name). In the filter select the idusr_ads (the one related with id in the user_usr table), select = , and sesion variable => kt_login_id. and click OK.
back to the wizard 1/4 the primary key colum is "ads name" (well ads name it's not set as a primary key in the db so I think I must select the id_ads or idusr_ads in the previous step).
In the step 2/4 click + and add ads name. and finish.