Dear Rick,
I am using proc mixed commend to do multilevel analysis and proc plm to test interaction. I save the estimate in a new data set and then use it to draw a plot using sgplot.
I am trying to add the values of the intercept and the slope for each group. Can I do that? Here is the syntax I use:

PROC MIXED DATA=temp5 METHOD = REML COVTEST NAMELEN=100;
CLASS group therapist id session;
MODEL wai_J_mc =
wai_T_mc|group
/ SOLUTION DDFM = sat ;
LSMEANS group / slice = group DIFF=ALL CL;
RANDOM intercept wai_T_mc
/SUB=id type=un ;
repeated session/subject = id type = ar(1);
store catcont;
run;
*****Turn on ODS output to create dataset from results output object (output object name from SAS system=SliceFitPlot);
ods output SliceFitPlot=Plot_catcont;

*****Run proc plm to create single panel graph with two series (interaction chart);
proc plm restore=catcont noclprint;
effectplot slicefit(x=wai_T_mc sliceby=group= 0 1)/ clm;
run;
*****Close output dataset creation command;
ods output close;
*****Basic formatting on dataset for use with SGPLOT;
data Plot_catcont1;
set Plot_catcont;
*Program time as 1-5;
wai_T_mc=_XCONT1;
*Separate out the two different series for use in interaction graph (Tx vs TAU);
if _INDEX=1 then control=_PREDICTED;
if _INDEX=2 then oxt=_PREDICTED;
if _INDEX=1 then l_control=_lclm;
if _INDEX=2 then l_oxt=_lclm;
if _INDEX=1 then u_control=_uclm;
if _INDEX=2 then u_oxt=_uclm;
run;
******Create plot;
proc sgplot data=Plot_catcont1 noautolegend ;
*TITLE;
*title font="times new roman" "Temporal Congruance by Oxytocin Group" ;
*LINES;
SERIES X=wai_T_mc Y=oxt / LEGENDLABEL = 'Oxytocin Group'
/*MARKERS*/ LINEATTRS = (THICKNESS=2 COLOR=CXCF0000 PATTERN=LongDash);*med dark red ;
SERIES X=wai_T_mc Y=control / LEGENDLABEL = 'Placebo'
/*MARKERS*/ LINEATTRS = (THICKNESS=2 COLOR=CX0000CF PATTERN=Solid);*med dark blue ;
XAXIS LABEL = 'Patients alliance' LABELATTRS=(family="times new roman" size=11 weight=bold)valueattrs=(family="times new roman")
MIN = -2
MAX = 1;
YAXIS LABEL = 'Therapists alliance' LABELATTRS=(family="times new roman" size=11 weight=bold)valueattrs=(family="times new roman")
MIN = -2
MAX = 0;
band X=wai_T_mc lower=l_control upper=u_control / legendlabel="95% CI" fillattrs=(color=blue transparency=.90);
band X=wai_T_mc lower=l_oxt upper=u_oxt / legendlabel="95% CI" fillattrs=(color=red transparency=.90) ;
KEYLEGEND / LOCATION=inside POSITION=TopRight ACROSS=4 ;

run;