To adjust the width of the bottom horizontal scrollbar, you can use the tabStripRatio property of Spread.Sheets.IWorkbookOptions. Setting the value of the property to “0.0” sets it to full width, and increasing the value decreases the overall width. Therefore, setting the value to “0.5” instead halves the overall width of the horizontal scrollbar.
You can set the property similar to the following code:
let spread = designer.getWorkbook()
spread.options.tabStripRatio = 0.5; //Change to desired valueTye Glenz