The System offered many Skills related to mech design, but probably not everything. Even if it did allow him to learn some highly-exclusive knowledge, it was often locked behind insane price tags or onerous mission requirements.
Take for example the foundational Skill that was simply called Expert Mechs. Ves needed to obtain this Skill first before he could access the huge variety of Sub-Skills that were each tailored to enhance specific aspects of these powerful machines.
Most of them related to manipulating resonating materials and getting them to cooperate with the resonance abilities of specific expert pilots. From what little Ves could see when he activated the System and browsed the Skill Tree, these Sub-Skills formed the actual specialization of mech designers who engaged in designing expert mechs.
"This is probably why multiple Seniors or Masters usually collaborate on expert mech designs." Ves muttered.
