There is actually a third option as well and that is to tell NX in the Customer Defaults to do the Check-out check-in procedure automatically...
This is however not (for concurrent engineering) the most prefered option.
Ronald van den Broek
Senior Application Engineer
Winterthur Gas & Diesel Ltd
NX8.5.3 / TC9.1.2
HPZ420 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz, 32 Gb Win7 64B
Nvidea Quadro4000 2048MB DDR5
HP Zbook15
Intel(R) Core(TM) i7-4800MQ
CPU @ 2.70 GHz Win7 64b
Nvidia K1100M 2048 MB DDR5