Why don't I have a start of project marker.

Dont change the project start marker. If you want pickup notes either cut the region start just prior to the pick up notes or decrease the region start by dragging the left edge to the right to eliminate the rests just prior to the pickup notes. Modifications are done to the regions.

Measures are relative and can be numbered to anything. Your pick up measure has to be in 1. So say you have 3 rests and a quarter note pickup in measure one, then song starts on measure 2. Just shorten the region by 3 beats (or cut the first 3 beats out) .... That's it! If you want measure numbers to read correctly just set offset by one in the score. Then the downbeat measure will be labeled as 1

see if this helps.....

Click and Drag the Start Marker to the left to adjust the starting point of your project.

Indyuser, that's way more difficult than it needs to be for the OP, even though it's a valid method.

Just adjust the start marker by dragging.

Strongly disagree. Moving the project start marker in the negative direction will cause all other sorts of other problems. I would never never recommend that unless you have a strog desire to post issues on this board.

also if you have a full score and different staves have different pick up measures your method will not work.

Cutting a a region or shortening it is no more complex than moving the project start marker.

you can move the start marker to the right, just never never never never to the left.

The above should be considered experienced sound advice.

Problems such as what?

I do it all the time for pickup measures and I've never had an issue with it.

I am also very experienced, so I'm not sure where you were going with that.

I am offering advice. You obviously can do what you want. I could post 30 links to issues associated with the link below.

Given your experience, I don't have to tell you who these guys are....

https://www.logicprohelp.com/forum/viewtopic.php?f=42&t=117756

Yes, I got my level 2 Logic certification with David, so I'm very familiar with the LPH forums.

If the intent is a pickup measure in the score, I have never had issues moving the project start back to zero.

Indyuser is absolutely correct....

Moving the Start Project marker negatively prior to (or in fact to/from any other point than...) 1.1.1.1 can often cause all kinds of issues and is not recommended...

Given you know how experienced David is...

From David's post on LPH.... that Indyuser linked to...

My workaround for the past 10 years or so has been to NEVER, EVER have the project start marker at any position other than 1 1 1 1 (some of the issues also occur when the project start marker is after 1 1 1 1).

Anyhow... To force the Start Marker to appear....after making sure that the Advanced Tools are all checked....

Set the Playhead to Bar 1, then click on the Playhead Position (Bars) field in the Control Bar and drag to a negative value. The start icon will magically appear

Thanks to hipwazee for this useful tip....

However, I still wouldn't recommend moving the Start Marker from anything other than 1.1.1.1 because of the known buggy behaviors that can ensure...

Cheers..

Nigel

Make sure the Use SMPTE view offset option, isn't checked...

Note: However, it seems you may have already dragged the Start Marker back in the past which could then be causing this sort of issue....

Once done, its a pain to get it fixed again.... so if you cannot resolve it... then I suggest you may want to create a new project and via the STI functionality, import each track into the new project

http://music.tutsplus.com/tutorials/how-to-use-selective-track-import-in-logic-p ro-9--audio-3181

(STI works the same way in LPX as it did in LP9)