Hello,
We do not typically recommend expanding the internal slices beyond their current ranges. These are set to the current ranges by design as to prevent performance issues in Clarity. You have the potential to expand your external slices which are visible via the Timeslice Management page but the internal slices not visible on this page are not meant to be altered. The external slices were designed to handle these types of needs (wider ranges) and custom portlets/reports can be built off their data.
Now, with that said... there is an approved "extension" package available via support (just log a case and request to have it delivered) which will enable you to extend these internal slice ranges a bit wider. Development approved this range as an alternative to what we offer out-of-the-box but that's pretty much "the limit" as anything larger would start to affect performance throughout the application.
Here are the default and extended ranges for comparison.
The out-of-the-box internal timeslice range was as follows:
28 Daily - One week in the past, the current week and 3 weeks in the future
16 Weekly - 2 weeks in the past, the current week and 13 weeks in the future
36 Monthly - 4 quarters in the past, the current quarter and 7 quarters in
the future
The new internal timeslice range will be as follows:
42 Daily - One week in the past, the current week and 4 weeks in the future
44 Weekly - 4 weeks in the past, the current week and 40 weeks in the future
51 Monthly - 4 quarters in the past, the current quarter and 12 quarters in
the future
Hope this helps!
--Kathy