Is there a way to completely hide secondary dataseries on the chart (I want to be able to access some of its values programmatically, but I want that dataseries to be completely hidden like the way we could make any indicator "invisible" by checking "invisible" checkbox)?

Darvish 

Is there a way to completely hide secondary dataseries on the chart (I want to be able to access some of its values programmatically, but I want that dataseries to be completely hidden like the way we could make any indicator "invisible" by checking "invisible" checkbox)?

You can set all the visible properties (candles, price marker, trading hours break line, executions) from the 2nd DataSeries to Transparent or Visible=No and empty the Label property field. That way there will be nothing visible on the chart.

Miesto 

You can set all the visible properties (candles, price marker, trading hours break line, executions) from the 2nd DataSeries to Transparent or Visible=No and empty the Label property field. That way there will be nothing visible on the chart.

I did that, however the second data series causes the first data series to be spaced out and warps the view. So in spite of the second data series being transparent, it still causes the first series to be not visually aligned. So I’m looking to see if there’s a way, or if I have to build a solution to have access to all the values and calculations of the 2nd data series but for it to be fully invisible and not visually affecting the first data series.

Quoting 

(I want to be able to access some of its values programmatically, but I want that dataseries to be completely hidden like the way we could make any indicator "invisible" by checking "invisible" checkbox)

I understand by "access some of its values programmatically" that you are working on a multi series script,
using the AddDataSeries() method from NS wich makes the script calculate the secondary series underground,
In wich case you don't need a secondary series on the chart, only the one you want to see.

Darvish 

I did that, however the second data series causes the first data series to be spaced out and warps the view. So in spite of the second data series being transparent, it still causes the first series to be not visually aligned. So I’m looking to see if there’s a way, or if I have to build a solution to have access to all the values and calculations of the 2nd data series but for it to be fully invisible and not visually affecting the first data series.

You might try to place the 2nd DataSeries in a new panel which you can make invisible by dragging the top of the panel down to the bottom. Panel 1 then contains the 1st DataSeries and panel 2 to 2nd DataSeries.