Hi Ronald,
Thanks for using Syncfusion products.
Query 1: Why next pane always adds from bottom to top and not vice versa?
We would like to inform you that, by default rows added in ChartRowDefinition from bottom to top. This is a default behavior for SfChart Control. In order to add the rows from top to bottom, you need to specify the appropriate row values (eg : ChartBase.Row="1") to the chart.
Query 2: how i can configure forward forecasting area without trendline?
We can adjust forward side position for ChartArea by using Maximum Property for Chart Axis. Also we can adjust the both side of ChartArea by using the RangePadding or PlotOffset property for ChartAxis as shown in the below code snippet.
Code Snippet
<chart:SfChart.PrimaryAxis>
<chart:NumericalAxis RangePadding="Additional"
/>
</chart:SfChart.PrimaryAxis>
Please let us know if you have any queries.
Regards,
M.Sheik