Are all motors aliased to axes?

As a support person, I really want all my motors to be aliased to an axis, so that the name is easier to understand what is going on, with all blocks and scripting pointing to the alias - this simplifies issues with motor failures as only the axis lookup has to be changed in that situation.
There is a mechanism to do this, but there is a concern that not all functions are available to an axis.
There is a concern that this procedure has not been adhered to in all situations.

**Acceptance Criteria**
1. Compile a list and place on the wiki of which functions are available to an axis alias, and which are needed that are not available
1. Check in the blocks/opis/scripts etc. that anything which is not dependent on a specific motor looks at axes, list any which don't
1. Create tickets for any missing functionality, and to remedy any inappropriate direct access

**Notes**
1. The table of motors should refer to individual motors
1. We maybe need to consider a table of axes which could then be used as the look up point for axis to motor - if this is deemed useful - create a separate ticket to create one