Within an active Figure, where (BEG <Figure name>) has been invoked, you can enter a figure command to specify subsequent points to define multiple points on a curve.
After the points on the curve have been defined, you can enter a command to end the multi-point curve and subsequent points will define line segments. The figure object created from the multi-point curve contains contiguous arc segments for each multi-point curve range.
To create a multi-point curve in a figure
BEGIN [figure]
MCS
The next points you enter will define the points on the curve.
NE 1000 1000
BEG EP1
PT1
NE SS 2 1100 1100
MCS
NE SS 3 1140 1120
NE SS 4 1800 1110
NE SS 5 1180 1070
MCE
NE SS 6 1160 1020
END