Hi, In a mailer with HTML coding I want to merge rows dynamically based on one particular field Working Hours in the Group Loop. How to do that in 7.40?
```
LOOP AT lt_wip_plant INTO DATA(wa_wip_plant) GROUP BY wa_wip_plant-wrkng_hrs.
DATA(lv_tabix) = sy-tabix.
add_html:
'<tr>',
'<b>',
'<font color="BLACK" width="75" FACE="Calibri" size="2">',
'<td BGCOLOR="#B0D1ED" align="center" rowspan =', lv_count,'>', wa_wip_plant-wrkng_hrs ,'</td>',
'</b>',
'</tr>'.
CLEAR: lv_span.
LOOP AT GROUP wa_wip_plant INTO DATA(wip_hrs).
lv_count = sy-tabix.
IF sy-tabix EQ lv_tabix.
CONTINUE.
ENDIF.
endloop.
endloop.
```

I want to merge the rows based on Working Hours as shown below:
