Suppose than today is 05/15/XXXX, How can I have the Profit & loss Standar until April by Month???. Previous post explain about especific period like Last Week, Last Month, Last Year... but this case is a litter difference because I need all the month until the last month, April. (not today). How can I do that? 

Thank you in advances 

For this example:

sp_report ProfitAndLossStandard show Text, Label, Amount_1 as Amount, Amount_1_Title as "As of"
parameters DateMacro = 'ThisMonthToDate', SummarizeColumnsBy = 'TotalOnly'

All the predefined DateMacro options available to you are:
|All|Today|ThisWeek|ThisWeekToDate|ThisMonth|ThisMonthToDate|ThisQuarter|ThisQuarterToDate
|ThisYear|ThisYearToDate|Yesterday|LastWeek|LastWeekToDate|LastMonth|LastMonthToDate|LastQuarter
|LastQuarterToDate|LastYear|LastYearToDate|NextWeek|NextFourWeeks|NextMonth|NextQuarter|NextYear|

But you can you can also specify a period using the DateFrom and DateTo parameters like this:

sp_report ProfitAndLossStandard show Text, Label, Amount_1 as Amount, Amount_1_Title as "As of"
parameters DateFrom = {d'2007-01-01'}, DateTo={d'2007-05-16'}, SummarizeColumnsBy = 'TotalOnly'

See: How do I run a Profit & Loss Standard Report? for more.