You can leave a street blank to match any common action. For example, "-C-F" will match lines where someone calls turn and folds river, and "--B" matches any river bet. You'll see an extra "Line" dropdown in the table selection with every matching line
To quickly match a bet size in % pot you can add the bet size anywhere in the street. "XC30-X-B" and "XR33-X-B75" both filter for a ~1/3 flop bet size
The size will just match the nearest size bucket, so 30 will become 33, and 33 matches between 29-41% pot since lower would go into the 25% bucket and higher into 50%
You can also use S/M/L/O for size filtering like "XCL-X-BS"
To analyze a few actions you can put them in square brackets like "B-X-[XB]" to match either B-X-B or B-X-X