What is ER1? A small software application that installs and automatically configures the ergonomic keyboard layout for the Romanian language. After installation, the Romanian ER1 layout is readily available from the Language Bar. What is the ER1 layout? A mapping (layout) and method of operation for the Romanian alphabetic diacritic characters on QWERTY and QWERTZ (not in ER1 v1.0) keyboards, where non-Romanian letters like Q, W, Y, K, X are moved to the AltGr shift state to make space for the Romanian diacritic letters, taking advantage of the fact that each non-Romanian letter is positioned in the immediate proximity of a base letter of diacritic letters. The resulting layout provides fluent typing and requires virtually no training, as well as virtually no keyboard labeling.