Here you can post and download custom indicators. PLEASE: Do not start topics unless you are posting your own indicator, they will be moved to appropriate section even if you do.
Logarithmic Scaling have three modes. Linear Logarithmic (Base 10) 1, 10, 100, 1000 steps, the same spacing between steps. Semi Logarithmic (Base 2). 1, 2, 4, 8, 16, the same spacing between steps, each step, it has twice the weight of the previous one.
As you know, there is no real forex volume, we are talking about Tick volume, its value can vary because of different sources of liquidity for an individual broker, applied algorithms to calculate the Tick Volume, Number of decimal places.
Are comparable only to the same data source. I read somewhere that the Tick Volume has 85 percent correlation with the right stuff.
As regards the second problem, I'll tell when I learn more.
I'm not sure if this patch is responsible, fxcodebase.com/code/viewtopic.php?f=31&t=2337, but the volumes bars are now updating/refreshing themselves correctly.
Please download and re-install offical 091010 release (just go to the "download software" section on your broker site and download and install Trading Station) or use Marketscope 2.0 Autotrading Patch which incorporates all changes made in 091010 release plus a lot of additional changes which will be released officially later but will let you use these many new indicator, signals and strategies right now.