Add documenatation of trends.
@@ -622,8 +622,16 @@ use the same severity for all issues.
### Build trend
-In order to see the trend of the analysis results, several charts show the number of issues per build. These charts are
-used in the details page as well as in the job overview. The following different trend chart types are currently available:
+In order to see the trend of the analysis results, several charts show the issues per build. These charts are shown in the details page as well as in the job overview.
+
+In the job overview page trends for all static analysis results are shown and an additional aggregation trend (if several results are available).
+You can configure the position of this aggregation trend in the pipeline script (or freestyle job configuration):
+- `AGGREGATION_TOOLS`: The aggregation trend is shown **before** all other analysis tool trend charts.
+- `TOOLS_AGGREGATION`: The aggregation trend is shown **after** all other analysis tool trend charts.
+- `TOOLS_ONLY`: The aggregation trend is not shown, only the analysis tool trend charts are shown.
+- `NONE`: Neither the aggregation trend nor analysis tool trend charts are shown.
+
+In the details page you can cycle through the available charts by using the carousel control. The following different trend chart types are currently available:
#### Distribution of issues by severity
