Through the tm1-options-override, various chart behaviours are now exposed and can be overwriten. How this attribute works is that it overrides the default option in the tm1-ui-chart. So you can override what you needed only!
Here are some of those that was used:
Initialize Multi Bar in Stacked Mode
Show all labels on the x-axis (tested with multiBar so far)
So for the above to be combined into one, you just need to write them as:
Here is the link where you can find more information regarding the 'options':
Share here all the other options that you have found so far!