From your code it would seem you may have the response values computed in your data set as separate columns.  You can use other plot types to overlay the other columns. ... View more

Your code is quite complex for a survival plot.  Have you seen these blog articles?  It can provide you some hints.  With SAS 9.4, you can use the AXISTABLE to display the "At Risk" table.   https://blogs.sas.com/content/graphicallyspeaking/2018/02/19/survival-plot-twist-using-sgplot-procedure/ https://blogs.sas.com/content/graphicallyspeaking/2014/02/09/survival-plot/   ... View more

Please post the error messages from the log, and the version of SAS (including maintenance level). ... View more

Add to ROWAXIS:   rowaxisopts=(offsetmin=0 linearopts=(tickvaluepriority=true) label='Mean Time' griddisplay=on linearopts=(viewmax=value)) ; ... View more

I addressed the "gap" issue in this blog article for holidays.  You can likely use the idea for your case.  I do not know of any format you can user to do this automatically.   https://blogs.sas.com/content/graphicallyspeaking/2017/09/27/stock-chart/   If a single axis is not a requirement, another way would be to use SGPANEL with PANELBY=day, and put the cells in a row.  Then, all the gaps between 4pm and 9am should go away.   ... View more

I could not run your code since the data set SUMM_SORT is not included.  You can get some separation of the groups by setting GROUPDISPLAY=cluster.  However, since you have a lot of observations, it may not be much.  You could also try setting TRANSPARENCY. ... View more

Or, use Pie Chart Macro:  https://blogs.sas.com/content/graphicallyspeaking/2012/08/26/how-about-some-pie/   ... View more