Watch the F7 Blues 2 String Arpeggios online guitar lesson by Rob Garland from Melodic Soloing: Blues Chord Tones
Transferring an F7 arpeggio to the b and e strings connecting the root, 3rd, 5th and b7th. Connecting the notes with slurs, slides, and bends moving through the 2nd and 6th as I did in the demonstration video.
For the IV chord, Bb7 I moved the exact same idea up connecting the root, 3rd, 5th, and b7th with slides, bends, and notes from the key or chromatic notes outside the key.
For C7, the V chord I moved the same idea down to the lower register, still on the b and e strings. Also, be aware of the BB King box. Then experiment moving this idea to other string sets and also combining positions.