Hi Carmem,
Thank you for contacting Syncfusion support.
We have analyzed your query but currently, we don’t have support to change dependency types as like locale text in EJ1 Gantt. We can do work-around to display TT instead of FF in the querycellInfo event but we need to give FF text as input value to perform calculation.
Please let us know if you need the work-around mentioned above if it meets your requirement.
Regards,
Monisha.