Updating download csv with instructions that match the UI

Author: forstisabella

src/connections/destination-data-control.md

@@ -54,9 +54,9 @@ To download a Source Schema CSV file:
 1. Sign into Segment and select a source.
 2. Click the **Schema** tab in the source header.
 3. On the Source Schema page, select an event type (Track, Identify, or Group)
-4. Click the **Download CSV** button. 
-5. On the **Download CSV?** popup that appears, click **Download**. <br/> The filename for your Source Schema CSV is in the following format:<br/>`workspace-slug-source-slug-schema-type-yyyy-mm-dd-hh-mm`
-6. To view the CSV file, navigate to your Downloads folder and open your CSV file.
+4. Click the **Download CSV** button. <br/> A toast pops up on the top of the page, with the message "*Your file is processing. When your file is ready it will be available to download from the Download History page.*" 
+5. Open the Download History page by clicking the link in the toast or following the instructions in the [view download history](#view-download-history) section.
+6. Once the file status column indicates that the download was successful, click the **Download CSV** link to download your CSV to your computer.<br/> The Source Schema CSV name has the following format:<br/>`workspace-slug-source-slug-schema-type-yyyy-mm-dd-hh-mm`
 
 > note "All events and properties are now included in the CSV file"
 > When you exporting the Source Schema, all events and properties are included in the CSV file regardless of the filters or search parameters currently applied to the Source Schema view. 
@@ -68,7 +68,7 @@ You can view the last 14 days' worth of Source Schema exports on the Download Hi
 To access the Download History page:
 1. Sign into Segment and select a source.
 2. Click the **Schema** tab in the source header.
-3. Click the **View Download History** link, next to the **Download CSV** button.
+3. Click the **View Download History** link.
 
 ### Track event CSV format
 The Track event CSV file contains the following columns: