Hi,  
  
It's the first time I'm working with the flow library. My question relates to configuring a flow of two liquids that come from a single source, but may be of two kinds (different densities). I would like to have one table, describing the properties of the entities, and another table, having one field as a model type, and another one as the weight limit in the flow sequence.  
  
So, basically   
Table1:  
--Entity---		---Density (kg/cubic meter)---		... some other props   
TypeA		5000  
TypeB		10000  
  
Table2:  
RowNumber (not a field, just for sequence)        --Entity---             ---Amount (cubic meters)---  
1                                                                      TypeA                     10000  
2                                                                      TypeA                     20000  
3                                                                      TypeB                     30000  
4                                                                      TypeB                     25000  
5                                                                      TypeA                     10000  
6                                                                      TypeB                     12000  
7                                                                      TypeB                     10000  
  
I need to make pauses between the sequential flows of different (or the same) liquids, in the order presented in 2nd table, but I believe, I'll figure out how to achieve this.  
  
The question is - how do I configure the source? I need to reference both tables, since I need to limit certain values by weight in the source, but have input in volume.  
  
I also have some other entity properties that I would need to access further in the simulation. They are in Table1, which is the descriptive table, not the one used for initializing the flow source.  
  
What I tried to do - is   
1. Specified the entity type as a referenced property from the Initialization table (Table2)  
2. I created the RunInitialized trigger for the flow source to SetRow to number 1 (I will further increment the rownumber - if there is a better solution, please advise)  
3. I tried to limit MaximumVolume by accessing another table - and here I'm stuck. I need to lookup Table1, but not by id (integer), but by the entity type. So, the lookup table seems not to fit here.  
  
Please advise of this design, how do I lookup in a Table1, when I have an entity of known type.