Text of Column for Report ALV

Hi.

I am creating a report ALV, but the consultant modify the Data Element Text of the field as is made in the following link:

http://www.erpgenie.com/sap-technical/abap/changing-data-element-field-text

I Question is:

How can display the news texts in the columns of my report ALV taking the texts that the consultant Modify using this method?

I am creating the catalog as follow:

gt_fieldcat-tabname = 'IT_TABLA'.

gt_fieldcat-fieldname = 'ORD41'.

gt_fieldcat-ddictxt = 'L'.

gt_fieldcat-seltext_l = TEXT-C01.

gt_fieldcat-col_pos = W_POSI.

gt_fieldcat-ref_tabname = 'ANLA'.

gt_fieldcat-ref_fieldname = 'ORD41'.

APPEND gt_fieldcat. CLEAR gt_fieldcat.

Can any help me please.?

Thank in advance for your help.

Regards