The Alternate key doesn't always work

[digitalbio]

Browser: Firefox

1. I annotated two aligned structures so that each pair of aligned chains had the same color.
2. I deleted all the defined sets except for the two structures (7A94 and 7KRQ).
3. I clicked one structure in Defined sets and clicked View Selected in order to see it.
4. I clicked the A key to alternate between structures but nothing happened.
5. I had to clear the selection three times to get the alternate key to work.

load alignment 192475,1,200478,1 | parameters &showalignseq=1&align=192475,1,200478,1&atype=0 view interactions select chain 7A94_D color F4A460 select chain 7A94_A select alignChain 7KRQ_C select alignChain 7KRQ_C select alignChain 7A94_A select sets align_7KRQ_C or align_7A94_A select alignChain 7A94_A color 0FF select alignChain 7KRQ_C color 0FF select alignChain 7A94_B select alignChain 7KRQ_A select sets align_7A94_B or align_7KRQ_A color F0F select alignChain 7A94_C select alignChain 7KRQ_B select sets align_7A94_C or align_7KRQ_B color A52A2A defined sets defined sets select sets 7A94_A select sets 7A94_A or 7A94_B or 7A94_C or 7A94_D or 7A94_Misc or 7A94_cons or 7A94_nalign or 7A94_ncons select sets 7A94_A or 7A94_B select sets 7A94_A or 7A94_B or 7A94_ncons select sets 7A94_A or 7A94_B or 7A94_nalign or 7A94_ncons select sets 7A94_A or 7A94_B or 7A94_cons or 7A94_nalign or 7A94_ncons select sets 7A94_A or 7A94_B or 7A94_C or 7A94_cons or 7A94_nalign or 7A94_ncons delete selected sets select sets 7A94_D select sets 7A94_D or 7A94_Misc delete selected sets select sets 7KRQ_A select sets 7KRQ_A or 7KRQ_B or 7KRQ_C or 7KRQ_Misc or 7KRQ_cons or 7KRQ_nalign or 7KRQ_ncons or align_7A94_A or align_7A94_B or align_7A94_C or align_7KRQ_A or align_7KRQ_B or align_7KRQ_C or chemicals or ions or protein_aligned or proteins delete selected sets select sets 7A94 show selection alternate structures select sets 7KRQ clear all clear all clear all

[jiywang3]

The alternation only works for your selection. If your selection has just one structure, it doesn't alternate. In your case, you need to click the "All Atoms/Selection" toggle near the "Help" menu to select all structures, then do the alternation.

[digitalbio]

Thanks!