Remove weekends and multi-split tasks

I have two questions concerning dhtmlxGantt.
for my project, I need to remove the weekends (at the display and duration), the latter does it support?
I need more to make multi-split a task, the he also supports?

There in no multi-split, and we do not plan to add such feature
You can check dhtmlxScheduler, which may better suit for your needs … lines.html