\f[B]-f\f[R], \f[B]\[en]flip\f[R]
Show second column first
.TP
+\f[B]-p\f[R], \f[B]\[en]purge\f[R]
+Purge cache for chosen set
+.TP
+\f[B]-P\f[R], \f[B]\[en]purge-all\f[R]
+Purge all caches
+.TP
\f[B]-r\f[R], \f[B]\[en]reverse\f[R]
Reverse card order.
Has no effect when shuffling as well