I have worked on some question which were asked in the session which are explained below:

Alignment of walls in FreeCAD:-

let us suppose we draw a wall from the Create a wall option placing starting point anywhere and the second point moving upwards in the positive X direction with Alignment at ‘center’.

Now if we change the alignment to ‘right’ then the wall move with respect to the right face of the wall like this

and if we give the alignment to ‘left’ then the wall moves with respect to the left face of the wall position be like this

Scheduling

I have tried to perform scheduling of the model I have made earlier. For this, we need an model. Then we press the arch schedule button and a task panel opens.

Then we have to fill the the details in the task panel. For this first press add button to add a line and double click each cell to fill in the values.for Example:- In the description, we fill Total Length of Walls. In value the object.Length. In unit the units we want like m (meter) and in filter type:wall.
After that press ok. In the tree view, a new object appears named Schedule which contains a spreadsheet. By double-clicking the spreadsheet we will get the results. If we want to change any value double-click the schedule and we will get the task panel.

Members move with the change in position of grid?

If we create a model which have members (like walls, columns, beams etc.) modelled on the Grid we have made and if we move a grid line, is any change occurs to the member which have been modelled on that grid line. I have tried to find it out with the use of FreeCAD, Archicad and Revit.

In FreeCAD, for example, we create a wall on any grid line which we have created with the help of BIM Manage Project option. When I tried to change the position of the grid line, we are not allowed to make changes in X and Y axis. It only takes place in Z-axis, Also in Z-axis If changing the position of the grid in V axes grid all other grids will automatically acquire the same position. Same happens for grids in H axes.

In Archicad, we are not able to change the position of one grid line. The whole grid system changes at once and there is no effect of changes of the members which are created on the grids.

In Revit, when we make any grid line to move, the member which is attached with the grid line change its position to that grid line.