When Microsoft introduced the in Office 2007, it created a massive productivity chasm. Millions of users who had memorized Alt+ shortcuts and menu hierarchies (File > Edit > View > Insert > Format > Tools > Data > Window > Help) were suddenly lost.
If you can clarify what and SCR refer to in your exact domain (e.g., mainframe channel controller, video card BIOS, automotive ECU), I can tailor the deep text precisely. Otherwise, the above provides a technically plausible deep dive into a legacy hardware register design. cm2 scr old version