When you say load, do you mean while showing on frontend it should be shown in defined order?
if yes then you can use the Expression option under sorting tab.
The expression will be like this.
If(Value = 'e',1,
If(Value = 'b',2,
If(Value = 'c,3,
If(Value = 'a',4,
If(Value = 'd',5,....
If the load order was defined in a separate table of 120 values in the order we want we can load this first table with an autonumber field. The fact table can then be loaded as a temp table with an autonumber field on this dimension and then the facts can be loaded from this temp resident table ordered by that autonumber field.