Currently: Reportlets delete trends you have added to Reports based on Reportlet size (i.e. Max Trends Large = 5, Medium = 3, Small = 1) and do so without any options on our part. For example looking at below there are actually 6 Trends gaphed in the Report and Visits is not graphed, but only four trends shown in the Reportlet with two deleted, etc.
Suggestions: The users must have the ability do decide What is important and How they want to present information in their reporting. If the core issue is the space needed for the data columns then consider the following:
Let the user pick which is more important Show All Trends or Show All Data
If Details rows are not selected then default to Show All Trends and vice versa
Wrap text in columns for both the Trend names (so they are not truncated and unreadable - See Red Box in pic) and values i.e. put volumes on top row, %'s on next row, think some have already suggested let us turn of the secondary value (i.e. %'s if showing volumes)
We can already control which Trends to show or not in the Report definition, perhaps let us do the same for which data columns to show
All Reportlets should be capable of showing as many trends as we can add to Reports