Two resurce types is predefined  in ProjectLibre soft, which includes work and materials only. I think it's not enough for pratice and total 4 types such as manpower, equipment, material and customized are necessary and better. So wish it'll be updated in next version.

Now I'm try to use the newest ProjectLibre with 1.6.2, but the new calendar defined can't be saved and the existing calendars cant't be chosen and modified any way. So how can I do?