Please add Collapse/Expand buttons in the Matrix Visualizations. Otherwise when all fields are expanded by default the user would have to scroll a lot to find what they are looking for. I could add a slicer to take user to the data they are looking for but then the rest of the data in the matrix disappears and more specifically the overall totals change!Expand/Collapse buttons would keep the overall totals as intended and totals for other fields while allowing the user to only expand the field they are interested in. Also ability to do conditional formatting for a specific field in the matrix would be nice. Thanks!

Power BI Designer saves a local PBIX file, which can be a file to export data and data model – in other words, it’s a format that contains a complete semantic model. All the applications that today export data in several formats (CSV, Excel, XML), might provide a richer semantic model exporting a PBIX file.

Many ISV/SI that have OLTP and other applications that stores data in some database, usually struggle to offer a compelling BI story to their customers. The smaller they are, the more they feel this pressure because probably the effort they can put in their custom software is minimal.

Today these ISV/SI integrate their solution with external vendor technologies (QlikView is a common choice here). However, the cost of such a solution for the end user is not always appealing, and for this reason the MS partner ecosystem always look for components (charts and pivot tables) to integrate in their solutions.

Providing them an easy and inexpensive way to produce PBIX files “ready to use” straight from their product/solution would provide several benefits:

- Customers would have something ready to be uploaded to Power BI service

- ISV/SI would be able to provide a BI solution integrated with MS ecosystem

- ISV/SI can implement solutions like “send a PBIX file via mail every week to all the agents including only the data of their prospects/customers” - Today they already do that using the .CUB format, which can be consumed by both Excel and custom applications

- Microsoft would increase the number of Power BI users very quickly - Small ISV/SI would be able to implement such integration very fast

What I propose to do is, in descending order of importance:

1) Support Power BI Designer as a local engine with an API that can be used by anyone and officially support local connections by other programs (starting from Excel)

- The API should provide the ability to create a data model and to populate it with data by just using API, without any manual interaction

- Providing the ability to connect from other clients (today it is possible but not officially supported) would increase the adoption.

2) Document and “open” the PBIX file, so that it can be generated by anyone

- I think that this is easy for the data model, but not for the data.

- But without the data, this model would be not so useful, requiring a manual refresh to be populated.

3) Open source the Power BI Designer

- Not really a priority in my opinion, but if the first two wouldn’t be possible, this one could be ok

A current limitation in Power BI SWITCH measures (and all Power Pivot actually) is that a SWITCH measure must have a single format. It is currently not possible to conditionally format the measure result based on any criteria - it is one single format only. There are valid use cases where you may want to change the format of the SWITCH measure depending on the result. Consider the following SWITCH statement
myMeasure = SUMX(MeasureTable,switch([selected measure],
1,[Total Sales],
2,[Total Cost],
3,[Total Margin],
4,[Chg Sales vs LY %]
))
The first 3 results are all currency format, but the last result is a percentage format. This currently can't be controlled. I would like to see an optional 3rd parameter in the SWITCH statement to set an alternate number format.

The newly introduced Query Dependency view is phenomenal but what we really need is a Measure Dependency view. Here is what it might look like: http://ppvt.pro/2eXKndh
And a video detailing this idea: https://youtu.be/sYjBB_Ef66M

In one of my production models I have 60 Queries, but I have 200+ measures! I believe that is typical; usually I build Queries and Measures as lego blocks, combining simpler ones into more complex ones needed in the end. In fact I needed it so badle that I attempted to build a Measure Dependency view using NodeXL. While that works, it's a lot of heavy lifting. How cool would it be, to just click a button on Power BI Desktop and see all your measures in a Dependency tree!