Displaying Canvases

Hi
When you open a new canvas in Form builder it is set right to the top and left of the page and is only expandable from the bottom left corner. How do you move the top bit down to leave a space so that two cnvases can be displayed together without overlapping?
Thanks
USER605593

Thanks for reply.
What I am trying to do is this:
Allow query on item in details block and return master details too, but if you imagine being in master block say and hitting query button you get full query results back i.e. detail as well, but if you are in detail block and query on an item there you only get detail block records returned without associated master details. I remember working on a similar form with code in it to handle this but I did not specifically build it, and have not done this type of thing yet.
I thought that, in addition to my master - details block, with relationship, I could have created a third block based on the master and use it as a query only block - join back to the query only block with an isolated relationship. Now I am thinking this might be too much complication for a simple problem as I more or less have something worked out but cannot get master to return when detail query is performed. Whether I will need to use the query block in this instance I am not sure yet.
Is there a simpler way of returning master records when querying in details block rather than creating a new query block etc? I only have 2 simple blocks, one of which is based on a from clause query?
Thanks
USER605593

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