CartesianChart ColumnSeries - Axes Values and labels format

[nk-alex]

I have this code:

<lvc:CartesianChart Series="{Binding BalanceChartSeries}"
				Margin="5"
				ZoomMode="None"
				XAxes="{Binding BalanceXAxes}"
				YAxes="{Binding BalanceYAxes}"
				DrawMargin="{Binding DrawingMargin}"
				LegendPosition="Top"
				LegendTextSize="15"
				HeightRequest="350"
				EasingFunction="{Binding Source={x:Static lvcore:EasingFunctions.BounceOut}}"
				AnimationsSpeed="00:00:01.000"/>

BalanceChartSeries = new ObservableCollection<ISeries>
{
	new LineSeries<double>
	{
		Name = AppResources.ReportingTab_Accumulated,
		Values = new double[] { 20, 5, 0, 4, -3, -12, -4, -6, 2, -4, -8, -7 },
		Fill = new SolidColorPaint(AppGlobals.AppColor3.ToSKColor()),
		GeometryStroke = new SolidColorPaint(AppGlobals.AppColor3.ToSKColor()),
		GeometryFill = new SolidColorPaint(AppGlobals.AppColor3.ToSKColor()),
		GeometrySize = 0,
		LineSmoothness = 1,
		Stroke = new SolidColorPaint(AppGlobals.AppColor4.ToSKColor(), 1),
	},

	new ColumnSeries<double>
	{
		Name = AppResources.ReportingTab_Result,
		Values = new ObservableCollection<double> { 20, 5, 0, 4, -3, -12, -4, -6, 2, -4, -8, -7 },
		Fill = new SolidColorPaint(AppGlobals.AppColor5.ToSKColor()),
	}
};

BalanceXAxes = new ObservableCollection<Axis>
{
	new Axis
	{
		Labels = new string[]
		{
			AppResources.Global_January_Abbreviation,
			AppResources.Global_February_Abbreviation,
			AppResources.Global_March_Abbreviation,
			AppResources.Global_April_Abbreviation,
			AppResources.Global_May_Abbreviation,
			AppResources.Global_June_Abbreviation,
			AppResources.Global_July_Abbreviation,
			AppResources.Global_August_Abbreviation,
			AppResources.Global_September_Abbreviation,
			AppResources.Global_October_Abbreviation,
			AppResources.Global_November_Abbreviation,
			AppResources.Global_December_Abbreviation
		},
		LabelsRotation = 90,
		SeparatorsAtCenter = false,
		TicksAtCenter = true,
		ForceStepToMin = true,
		MinStep = 1
	}
};
BalanceYAxes = new ObservableCollection<Axis>
{
	new Axis
	{
		Labeler = (value) => value.ToString() + " k",
	}
};

Which produces this chart:

I have three questions about the produced chart:

1. Is there is any way to set maximum/minimum axes values based on provided data? In my case, there is no sense to show values up to -20K. By just showing values up to the maximum (20k) / minimum (-12k) would be enough.
2. Is there any way to ensure BalanceXAxes Labels are always below the minimum value of the chart? In my chart, -20k is showing below the labels.
3. In my case, I'm showing as BalanceXAxes Labels month abbreviations. I'm wondering if there is a way to modify the tooltip by showing the entire name of the month + the value at that point.