You can tell what functions are available by looking in the functions list in the formula editor. You should also take time to use the Help function in CR which is very good, and which explains how to use these functions.
If you are asking whether there is a function like to "year to current month end" or "year to end of lastfullmonth", the answer is no, but you could use formulas like this:
//{@year to end of current month}:
{table.date} in minimum(YearToDate) to dateserial(year(currentdate),month(currentdate)+1,1)-1
//{@year to end of last full month}:
{table.date} in minimum(YearToDate) to maximum(lastfullmonth)
-LB