@V8Druid may have missed this, so I'll answer before he wreaks more mischief

.
Assuming your proportional line is foot-operated, you use this to vary the speed of the services (tilt, rotate, extra function(s) and so on) and select the functions and direction by using pairs of buttons mounted on the joysticks. You usually use it in single-acting mode, so it's a little like the accelerator in a car. It's a workable system for those on a budget but doesn't compare in utility to the higher level four/six hose systems (SS9) or fully proportional (SS10) systems that most tilty manufacturers will point you towards. FWIW, the road/rail diggers use a variant of this called SS5.
You can read more about it
here
HTH
Robert
Druids not been doin' much for a few days ... been rough ... now how much mischief shall i wreak Robert
I have just one prop line, could you possibly explain how this can be done?
Cetop3 valves are your friends for splitting your service .... come in two variants - on/off or fully proportional (at circa 10 times the price of the former and need driver circuitry too, at additional cost).

When i was building my Va-r, (variable angle rotator), as I like to call it -- or tilty as they'm more colloquially known as, I had one double acting prop service to play with, but wanted 4 services, (eventually) ... tilt, rotate and an aux. supply for tools under it, plus a hitch circuit.
only had room for a 3 way manifold, so had to deal with the hitch circuit separately (eventually).
a cetop3 valve, gets fed with a single prop supply in one direction only and enables you to run whatever is on
't'other side of it' in either direction by reversing the flow electrically with solenoids.
Three on one manifold gives you:-
one feed (P) in and one return (T) out from your prop service, which is only operated in one direction ..... the cetops on the manifold are then switched to whichever item you wish to feed and in whichever direction you want it to actuate ....
manifolding them allows for multiple items to be operated from the same service (but and this is the main drawback) they all receive the same flow rate from your one prop. feed to the manifold, (which is also split, flow wise, if more than one service is engaged) so i can't have a slow rotate and a fast tilt, or vice versa.
In practise - and with practise

it still makes for a very usable set up (doesn't it
@TiltyShaun ?)

so if you wanted to put a rotating grab under your dipper end .... feed your prop service to a pair of cetop3s manifolded and say mounted on the back of the boom and feed 4 hoses to your dipper tip for open/close and rotate left/right.
the solenoids to control these motions are actuated from pairs of buttons on your sticks.
since building me VA-r I have come across some smaller manifolded/sliced units which would've made life a lot easier when building and at a comparable cost .....
Port Sizes - P, T & N = 1/2 BSP / A & B = 3/8 BSP. It is compact but has a flow capacity of 50 lpm at 250 bar. With quality by design, high specification materials, 100% production testing. This valve is an economic alternative to currently available monoblocks.
www.ebay.co.uk
View attachment 24899
Port Sizes - P, T & N = 1/2 BSP / A & B = 3/8 BSP. It is compact but has a flow capacity of 50 lpm at 250 bar. With quality by design, high specification materials, 100% production testing. This valve is an economic alternative to currently available monoblocks.
www.ebay.co.uk
View attachment 24900
Port Sizes - P, T & N = 1/2 BSP / A & B = 3/8 BSP. It is compact but has a flow capacity of 50 lpm at 250 bar. With quality by design, high specification materials, 100% production testing. This valve is an economic alternative to currently available monoblocks.
www.ebay.co.uk
these are a hell of a lot smaller than the manifolded, separate 1/2" cetop3,s I used but hadn't found these back in 2014
View attachment 24901
View attachment 24902
View attachment 24903
View attachment 24904
the black, long union is a one way valve .. one on each pin/feed/return, in case of accidental activation in the wrong direction of the prop service supplying the manifold ... it wouldn't take kindly to reverse flow (apparently)

View attachment 24905
those little un's'd do a great job on the back of a boom
as said, there are drawbacks/restrictions ...... but tolerable .. it does get you as many additional usable feeds as you want and in the case of my VA-r build I only have a P and a T going to it ... all the hydraulic 'trickery' is located in the body of my VA-r so only 1 pair of pipes down the dipper .
As an extra novelty, I fed my 1/2" P and T lines through my pivot pins, with rotating unions inboard, to cope with the 120 degs of movement I managed, with tilt left to right
the 4 gallery rotary coupling feeding oil to the underside Aux ports and the hitch, is yet another story



( I have a 6 gallery unit for an upgrade, if I ever get around to 'creating' a gripper for it


... and two spare buttons to control it.

.... would just need to juggle in a.n.other cetop3 .... to control it


)
I take some flak for 'preaching' the 'pedal and buttons'
gospel, .. but
on a budget, it achieves a lot, that you wouldn't otherwise have (I was quoted 1200+ quid plus VAT
each for prop solenoid cetop3,s in 2014, plus 'driver' circuitry


... the on/offs were circa 36 quid each)
On edit ....
@Rivmedia .. have had to come back in here and edit all the images BACK IN ..... it does this fairly regularly

and is a right ball ache looking for the pix again