Yes. It is more economical to install bent plates on the supporting structure to provide a level surface for the joists.

Joist manufacturers do not supply canted bearing seats, as a general rule. These can be attempted when joists are used in hip and valley roof systems. In lieu of installing joists out of plumb, it is recommended that bent plates be installed on the supporting structural steel to provide a level surface of the joists.  If joists are installed out of plumb, special consideration must be given to the bridging. The top chord bridging must be designed for the joist weight effective on the top chord during construction. The bottom chord bridging must be designed for the effective weight while the joists are in service and to prevent rotation of the joist. The bridging will have to be designed for the accumulation of out-of-plane forces caused by the joists being out of plumb. The bearing seat must be designed for the rollover force that will occur due to the joist being out of plumb. the metal deck is considered to brace the joist top chord for the out-of-plane forces in the top chord.