All drawing elements such as holes, bolts, system lines etc. are controlled by the drawing styles. Every type of drawing has its own set of rules or drawing style. It is perfectly possible to turn all such things on but not appropriate or desirable in every case. You wold not show site bolts in an assembly drawing for example. Therefore much more precise requirements as to which elements are required in which drawing styles would be needed before any changes could be implemented.
User can edit drawing styles themselves. If you want more information on this deep level system setup Graitec UK can offer a 2 day course on how drawings styles work. Alternatively Graitec can do the changes for you but if it is more than one or two small tweaks (which it sounds like in this case) it would have to be a paid project rather than a routine support call. Please contact your account manager for more information.