Changing thickness of Bars and Candles without Zooming
Manipulating Bar and Candle Width This video demonstrates the process.
Yes. Open your preference window for the chart (double-clicking in horizontal scale at bottom of chart will get you there). In the "General" tab, you’ll find the “Pixels/Bar” setting, which controls the number of pixels allocated to each bar. Instead of a single number, you can manually enter text in the following format:
X:Y