Changeset 14975

#2709

• Improved Check/Uncheck of variables.
  • Instead of removing whole columns/rows from the tablelayout, the tablelayout stays the same with the column/rows width/height set to zero.
  • Hidden charts are not updated to avoid unnessecary calculations.
• Added a check (messagebox) if >20 variables should be displayed in the multi scatterplot or reduced to 20.
• Added configuration for point size/opacity and (histogram)aggregation.