How to open a FlexField when you click on the text item?

[edersu]

Next, I have a text_item field, connected to Dummy LOV
enable_list_lamp, in this field I have a FlexField, returning a code_combination

only the following: When you click on the Text_Item field, the FlexField does not open automatically, you need to click on the 3 dots "..." of the field, but wanted to open flex automatically, to prevent random values ??from being inserted ...

Here goes the stretch of the FlexField that is in the trigger WHEN-NEW-FORM-INSTANCE

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FND_KEY_FLEX.DEFINE(BLOCK => 'HR_UNA_HIERARQUIA_CHAVE' 
                                                   ,FIELD => 'TXT_CHAVE' 
                                                   ,APPL_SHORT_NAME => 'SQLGL' 
                                                   ,CODE => 'GL#' 
                                                   ,NUM => 101 --v_ORGANIZATION_ID 
                                                   ,ID => 'COD_COMBINATION_ID' 
                                                   ,REQUIRED => 'Y' 
                                                   ,VALIDATE => 'FULL' 
                                                   ,USEDBFLDS => 'N' 
                                                   ,TITLE => 'Conta Contábil' 
                                                   ,ALLOWNULLS=>'N'); 

The property automatic_display of LOV enable_list_lamp is 'YES'

Thanks from now on .....

[edersu]

It was like this ......

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WHEN-VALIDATE-ITEM 
if ( :system.mode = 'NORMAL' ) then 
       fnd_flex.event( 'WHEN-VALIDATE-ITEM' );--trigger do flexfield 
    end if; 
 
WHEN-NEW-ITEM-INSTANCE 
app_standard.event('WHEN-NEW-ITEM-INSTANCE'); 
    fnd_flex.event('WHEN-NEW-ITEM-INSTANCE' );

The two above are triggers of the text-item

]] And the trigger of form:

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KEY-LISTVAL 
FND_FLEX.EVENT('KEY-LISTVAL' );

Thanks.