RCRTWIDTH Variable
Most HP terminals have 80 columns of display memory. However, 700/9x terminals can switch into 132-column mode and Reflection emulators can have as many columns of scrollable display memory as you wish. If you do not set RCRTWIDTH, Qcterm emulates a 700/92 terminal but can display 200 columns as well as 80 or 132 columns normally available on a 700/92 terminal.
Qedit will query the terminal to see how wide display memory is at startup. Qedit must determine the width of display memory in order to properly fold listings of lines that will overflow that width, and to reset the width after it has been changed.
To change the Line mode display width while within Qedit, do Set Term Columns.