# System variable with R letter [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [R](Help%20System/GSTARCAD/2021/System%20Variables/R/(R).md) - [RECOVERYMODE](Help%20System/GSTARCAD/2021/System%20Variables/R/RECOVERYMODE%20System%20Variable.md "RECOVERYMODE") - [REFEDITNAME](Help%20System/GSTARCAD/2021/System%20Variables/R/REFEDITNAME%20System%20Variable.md "REFEDITNAME") - [REGENMODE](Help%20System/GSTARCAD/2021/System%20Variables/R/REGENMODE%20System%20Variable.md "REGENMODE") - [RE-INIT](Help%20System/GSTARCAD/2021/System%20Variables/R/RE-INIT%20System%20Variable.md "RE-INIT") - [REPORTERROR](Help%20System/GSTARCAD/2021/System%20Variables/R/REPORTERROR%20System%20Variable.md "REPORTERROR") - [ROAMABLEROOTPREFIX](Help%20System/GSTARCAD/2021/System%20Variables/R/ROAMABLEROOTPREFIX%20System%20Variable.md "ROAMABLEROOTPREFIX") - [ROLLOVERTIPS](Help%20System/GSTARCAD/2021/System%20Variables/R/ROLLOVERTIPS%20System%20Variable.md "ROLLOVERTIPS") - [RTDISPLAY](Help%20System/GSTARCAD/2021/System%20Variables/R/RTDISPLAY%20System%20Variable.md "RTDISPLAY") - ---